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lastleg-service/src/main/java/com/baiyue/lastleg/BaiyueLastlegApplication.java

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+package com.baiyue.lastleg;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * 尾程微服务预留模块启动入口，初始化 Spring Boot 应用并扫描尾程 Mapper。
+ */
+@MapperScan("com.baiyue.lastleg.mapper")
+@SpringBootApplication(scanBasePackages = "com.baiyue")
+public class BaiyueLastlegApplication {
+    public static void main(String[] args) { SpringApplication.run(BaiyueLastlegApplication.class, args); }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/controller/LastlegHealthController.java

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+package com.baiyue.lastleg.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Map;
+
+/**
+ * 尾程预留服务状态接口，用于验证尾程服务边界及基础可用性。
+ */
+@Tag(
+    name = "Last-leg service status / 尾程服务状态",
+    description = "Last-leg reserved service availability API. / 尾程预留服务的可用性接口。"
+)
+@RestController
+@RequestMapping("/api/platform/v1/last-leg")
+public class LastlegHealthController {
+    @Operation(
+        summary = "Get service status / 查询服务状态",
+        description = "Returns the logical status of the reserved lastleg-service boundary. / 返回预留 lastleg-service 边界的逻辑运行状态。"
+    )
+    @io.swagger.v3.oas.annotations.responses.ApiResponse(
+        responseCode = "200",
+        description = "Service is available / 服务可用"
+    )
+    @GetMapping("/status")
+    public ApiResponse<Map<String, String>> status() {
+        return ApiResponse.success(Map.of("service", "lastleg-service", "status", "UP"));
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/controller/LastlegOrderController.java

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+package com.baiyue.lastleg.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.common.event.EventEnvelope;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.dto.LastlegOrderDetailResponse;
+import com.baiyue.lastleg.dto.LastlegOrderRequests;
+import com.baiyue.lastleg.dto.LastlegOrderSummary;
+import com.baiyue.lastleg.security.InternalServiceTokenGuard;
+import com.baiyue.lastleg.service.LastlegOrderService;
+import com.baiyue.lastleg.service.LoadingCompletedConsumer;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.nio.charset.StandardCharsets;
+
+@RestController
+@Tag(name = "Tail-leg orders")
+public class LastlegOrderController {
+    @Resource private LoadingCompletedConsumer consumer;
+    @Resource private LastlegOrderService orderService;
+    @Resource private InternalServiceTokenGuard tokenGuard;
+
+    @PostMapping("/internal/lastleg/events")
+    @Operation(summary = "Receive a first-leg loading-completed event")
+    public ApiResponse<Integer> receive(
+        @RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+        @RequestBody EventEnvelope event) {
+        tokenGuard.verify(token);
+        return ApiResponse.success(consumer.consume(event));
+    }
+
+    @GetMapping("/api/platform/v1/last-leg/orders")
+    @Operation(summary = "Page tail-leg order rows")
+    public ApiResponse<PageResult<LastlegOrderSummary>> list(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @Valid LastlegOrderRequests.Query query) {
+        return ApiResponse.success(orderService.page(scope(user, customerId), query));
+    }
+
+    @GetMapping("/api/platform/v1/last-leg/orders/{id}")
+    @Operation(summary = "Get one inbound-code-level tail-leg order")
+    public ApiResponse<LastlegOrderDetailResponse> detail(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @PathVariable long id) {
+        return ApiResponse.success(orderService.detail(scope(user, customerId), id));
+    }
+
+    @GetMapping(value = "/api/platform/v1/last-leg/orders/export", produces = "text/csv")
+    @Operation(summary = "Export filtered tail-leg orders as UTF-8 CSV")
+    public ResponseEntity<byte[]> export(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @Valid LastlegOrderRequests.Query query) {
+        byte[] body = orderService.exportCsv(scope(user, customerId), query);
+        return ResponseEntity.ok()
+            .contentType(new MediaType("text", "csv", StandardCharsets.UTF_8))
+            .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=lastleg-orders.csv")
+            .body(body);
+    }
+
+    @PutMapping("/api/platform/v1/last-leg/orders/{id}/destination")
+    @Operation(summary = "Transfer one order to a destination warehouse")
+    public ApiResponse<Integer> transferOne(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @PathVariable long id,
+        @Valid @RequestBody LastlegOrderRequests.SingleTransferDestination request) {
+        return ApiResponse.success(orderService.transferDestination(scope(user, customerId), request.withOrderId(id)));
+    }
+
+    @PutMapping("/api/platform/v1/last-leg/orders/destination")
+    @Operation(summary = "Transfer multiple orders to a destination warehouse")
+    public ApiResponse<Integer> transferBatch(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @Valid @RequestBody LastlegOrderRequests.TransferDestination request) {
+        return ApiResponse.success(orderService.transferDestination(scope(user, customerId), request));
+    }
+
+    private String scope(AuthenticatedUser user, String requestedCustomer) {
+        if (user == null || user.tenantId() == null) {
+            throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        }
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedCustomer == null || requestedCustomer.isBlank() || "0".equals(requestedCustomer)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                    "Platform queries must specify a customer");
+            }
+            return requestedCustomer;
+        }
+        return String.valueOf(user.tenantId());
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/DeliveryMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.delivery;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.delivery.mapper")
+public class DeliveryMapperConfiguration {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/controller/DeliveryTransferController.java

@@ -0,0 +1,74 @@
+package com.baiyue.lastleg.delivery.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.delivery.dto.DeliveryRequests;
+import com.baiyue.lastleg.delivery.dto.DeliveryResponses;
+import com.baiyue.lastleg.delivery.service.DeliveryTransferService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.server.ResponseStatusException;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg")
+@Tag(name = "Outbound and delivery")
+public class DeliveryTransferController {
+    @Resource private DeliveryTransferService service;
+
+    @PostMapping("/dispatches/{dispatchNo}/transfer-delivery")
+    @Operation(summary = "Create one pending outbound order and one pending delivery order")
+    public ApiResponse<DeliveryResponses.TransferResult> transfer(
+        @AuthenticationPrincipal AuthenticatedUser user, @PathVariable String dispatchNo,
+        @RequestParam(required = false) String customerId,
+        @Valid @RequestBody DeliveryRequests.Transfer request) {
+        return ApiResponse.success(service.transfer(scope(user, customerId), dispatchNo, operator(user), request));
+    }
+
+    @GetMapping("/outbound-orders")
+    public ApiResponse<PageResult<DeliveryResponses.OutboundRow>> outboundPage(
+        @AuthenticationPrincipal AuthenticatedUser user, @RequestParam(required = false) String customerId,
+        @Valid DeliveryRequests.Query query) {
+        return ApiResponse.success(service.outboundPage(scope(user, customerId), query));
+    }
+
+    @GetMapping("/outbound-orders/{outboundNo}")
+    public ApiResponse<DeliveryResponses.OutboundDetail> outboundDetail(
+        @AuthenticationPrincipal AuthenticatedUser user, @RequestParam(required = false) String customerId,
+        @PathVariable String outboundNo, @Valid DeliveryRequests.PalletQuery query) {
+        return ApiResponse.success(service.outboundDetail(scope(user, customerId), outboundNo, query));
+    }
+
+    @GetMapping("/delivery-orders")
+    public ApiResponse<PageResult<DeliveryResponses.DeliveryRow>> deliveryPage(
+        @AuthenticationPrincipal AuthenticatedUser user, @RequestParam(required = false) String customerId,
+        @Valid DeliveryRequests.Query query) {
+        return ApiResponse.success(service.deliveryPage(scope(user, customerId), query));
+    }
+
+    @GetMapping("/delivery-orders/{deliveryNo}")
+    public ApiResponse<DeliveryResponses.OutboundDetail> deliveryDetail(
+        @AuthenticationPrincipal AuthenticatedUser user, @RequestParam(required = false) String customerId,
+        @PathVariable String deliveryNo, @Valid DeliveryRequests.PalletQuery query) {
+        return ApiResponse.success(service.deliveryDetail(scope(user, customerId), deliveryNo, query));
+    }
+
+    private String scope(AuthenticatedUser user, String requestedCustomer) {
+        if (user == null || user.tenantId() == null) throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedCustomer == null || requestedCustomer.isBlank() || "0".equals(requestedCustomer)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Platform request must specify target tenant");
+            }
+            return requestedCustomer.trim();
+        }
+        return String.valueOf(user.tenantId());
+    }
+    private String operator(AuthenticatedUser user) {
+        return user.userId() == null ? user.username() : String.valueOf(user.userId());
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/dto/DeliveryRequests.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.delivery.dto;
+
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Size;
+
+public final class DeliveryRequests {
+    private DeliveryRequests() {}
+
+    public record Transfer(@NotBlank @Size(max = 255) String idempotencyKey,
+                           @Size(max = 1000) String remark) {}
+
+    public record Query(@Min(1) long page, @Min(1) @Max(200) long size,
+                        String documentNo, String warehouseId, String status) {
+        public Query { if (page == 0) page = 1; if (size == 0) size = 20; }
+    }
+
+    public record PalletQuery(@Min(1) long page, @Min(1) @Max(200) long size,
+                              String destinationWarehouseCode) {
+        public PalletQuery { if (page == 0) page = 1; if (size == 0) size = 20; }
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/dto/DeliveryResponses.java

@@ -0,0 +1,27 @@
+package com.baiyue.lastleg.delivery.dto;
+
+import com.baiyue.common.core.api.PageResult;
+import java.time.LocalDateTime;
+
+public final class DeliveryResponses {
+    private DeliveryResponses() {}
+
+    public record TransferResult(String dispatchNo, String outboundNo, String outboundStatus,
+                                 String deliveryNo, String deliveryStatus, int palletCount,
+                                 int packageCount, boolean replayed) {}
+
+    public record OutboundRow(Long id, String outboundNo, String dispatchNo, String overseasWarehouseId,
+                              String status, int palletCount, int packageCount, LocalDateTime createdAt) {}
+
+    public record DeliveryRow(Long id, String deliveryNo, String outboundNo, String dispatchNo,
+                              String overseasWarehouseId, String status, int palletCount,
+                              int packageCount, LocalDateTime createdAt) {}
+
+    public record PalletRow(Long id, Long warehousePalletId, String palletNo, String inboundCode,
+                            String orderRefs, String destinationWarehouseId,
+                            String destinationWarehouseCode, String destinationWarehouseName,
+                            int packageCount) {}
+
+    public record OutboundDetail(OutboundRow outbound, DeliveryRow delivery,
+                                 PageResult<PalletRow> pallets) {}
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/entity/DeliveryOrder.java

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+package com.baiyue.lastleg.delivery.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Delivery document linked one-to-one to its outbound document and dispatch. */
+@Data
+@TableName("ll_delivery_order")
+public class DeliveryOrder {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String customerId;
+    private String deliveryNo;
+    private Long outboundOrderId;
+    private String outboundNo;
+    private Long dispatchOrderId;
+    private String dispatchNo;
+    private String overseasWarehouseId;
+    private String status;
+    private Integer packageCount;
+    private Integer palletCount;
+    private String idempotencyKey;
+    private String createdBy;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/entity/OutboundOrder.java

@@ -0,0 +1,28 @@
+package com.baiyue.lastleg.delivery.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Outbound document created when a dispatch is transferred to delivery. */
+@Data
+@TableName("ll_outbound_order")
+public class OutboundOrder {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String customerId;
+    private String outboundNo;
+    private Long dispatchOrderId;
+    private String dispatchNo;
+    private String overseasWarehouseId;
+    private String status;
+    private Integer packageCount;
+    private Integer palletCount;
+    private String idempotencyKey;
+    private String createdBy;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/entity/OutboundPalletItem.java

@@ -0,0 +1,27 @@
+package com.baiyue.lastleg.delivery.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Pallet-level immutable snapshot belonging to one outbound document. */
+@Data
+@TableName("ll_outbound_pallet_item")
+public class OutboundPalletItem {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String customerId;
+    private Long outboundOrderId;
+    private Long warehousePalletId;
+    private String palletNo;
+    private String destinationWarehouseId;
+    private String destinationWarehouseCode;
+    private String destinationWarehouseName;
+    private Integer packageCount;
+    private String orderRefs;
+    private String inboundCode;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/mapper/DeliveryOrderMapper.java

@@ -0,0 +1,17 @@
+package com.baiyue.lastleg.delivery.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.delivery.entity.DeliveryOrder;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface DeliveryOrderMapper extends BaseMapper<DeliveryOrder> {
+    @Select("SELECT * FROM ll_delivery_order WHERE customer_id=#{customerId} AND delivery_no=#{deliveryNo} LIMIT 1")
+    DeliveryOrder findByNo(@Param("customerId") String customerId, @Param("deliveryNo") String deliveryNo);
+    @Select("SELECT * FROM ll_delivery_order WHERE customer_id=#{customerId} AND idempotency_key=#{key} LIMIT 1")
+    DeliveryOrder findByIdempotency(@Param("customerId") String customerId, @Param("key") String key);
+    @Select("SELECT * FROM ll_delivery_order WHERE customer_id=#{customerId} AND outbound_order_id=#{outboundOrderId} LIMIT 1 FOR UPDATE")
+    DeliveryOrder lockByOutbound(@Param("customerId") String customerId, @Param("outboundOrderId") Long outboundOrderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/mapper/OutboundOrderMapper.java

@@ -0,0 +1,17 @@
+package com.baiyue.lastleg.delivery.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.delivery.entity.OutboundOrder;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface OutboundOrderMapper extends BaseMapper<OutboundOrder> {
+    @Select("SELECT * FROM ll_outbound_order WHERE customer_id=#{customerId} AND outbound_no=#{outboundNo} LIMIT 1")
+    OutboundOrder findByNo(@Param("customerId") String customerId, @Param("outboundNo") String outboundNo);
+    @Select("SELECT * FROM ll_outbound_order WHERE customer_id=#{customerId} AND idempotency_key=#{key} LIMIT 1")
+    OutboundOrder findByIdempotency(@Param("customerId") String customerId, @Param("key") String key);
+    @Select("SELECT * FROM ll_outbound_order WHERE customer_id=#{customerId} AND dispatch_order_id=#{dispatchOrderId} LIMIT 1 FOR UPDATE")
+    OutboundOrder lockByDispatch(@Param("customerId") String customerId, @Param("dispatchOrderId") Long dispatchOrderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/mapper/OutboundPalletItemMapper.java

@@ -0,0 +1,14 @@
+package com.baiyue.lastleg.delivery.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.delivery.entity.OutboundPalletItem;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import java.util.List;
+
+@Mapper
+public interface OutboundPalletItemMapper extends BaseMapper<OutboundPalletItem> {
+    @Select("SELECT * FROM ll_outbound_pallet_item WHERE customer_id=#{customerId} AND outbound_order_id=#{outboundOrderId} ORDER BY id")
+    List<OutboundPalletItem> findByOutbound(@Param("customerId") String customerId, @Param("outboundOrderId") Long outboundOrderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/delivery/service/DeliveryTransferService.java

@@ -0,0 +1,213 @@
+package com.baiyue.lastleg.delivery.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.lastleg.delivery.dto.DeliveryRequests;
+import com.baiyue.lastleg.delivery.dto.DeliveryResponses;
+import com.baiyue.lastleg.delivery.entity.DeliveryOrder;
+import com.baiyue.lastleg.delivery.entity.OutboundOrder;
+import com.baiyue.lastleg.delivery.entity.OutboundPalletItem;
+import com.baiyue.lastleg.delivery.mapper.DeliveryOrderMapper;
+import com.baiyue.lastleg.delivery.mapper.OutboundOrderMapper;
+import com.baiyue.lastleg.delivery.mapper.OutboundPalletItemMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import com.baiyue.lastleg.dispatch.mapper.DispatchItemMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchOrderMapper;
+import com.baiyue.lastleg.entity.LastlegOrder;
+import com.baiyue.lastleg.entity.LastlegOrderStatusHistory;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanLine;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanPalletAllocation;
+import com.baiyue.lastleg.inboundplan.mapper.InboundPlanLineMapper;
+import com.baiyue.lastleg.inboundplan.mapper.InboundPlanPalletAllocationMapper;
+import com.baiyue.lastleg.mapper.LastlegOrderMapper;
+import com.baiyue.lastleg.mapper.LastlegOrderStatusHistoryMapper;
+import jakarta.annotation.Resource;
+import org.springframework.dao.DuplicateKeyException;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.*;
+
+@Service
+public class DeliveryTransferService {
+    @Resource private DispatchOrderMapper dispatchOrders;
+    @Resource private DispatchItemMapper dispatchItems;
+    @Resource private OutboundOrderMapper outboundOrders;
+    @Resource private OutboundPalletItemMapper outboundPallets;
+    @Resource private DeliveryOrderMapper deliveryOrders;
+    @Resource private InboundPlanPalletAllocationMapper planAllocations;
+    @Resource private InboundPlanLineMapper planLines;
+    @Resource private LastlegOrderMapper tailOrders;
+    @Resource private LastlegOrderStatusHistoryMapper histories;
+
+    @Transactional
+    public DeliveryResponses.TransferResult transfer(String customerId, String dispatchNo, String operatorId,
+                                                       DeliveryRequests.Transfer request) {
+        DispatchOrder found = dispatchOrders.findByDispatchNo(customerId, dispatchNo);
+        if (found == null) throw notFound("Dispatch order not found");
+        DispatchOrder dispatch = dispatchOrders.lockById(customerId, found.getId());
+        OutboundOrder replay = outboundOrders.findByIdempotency(customerId, request.idempotencyKey().trim());
+        if (replay != null) {
+            if (!dispatch.getId().equals(replay.getDispatchOrderId())) throw conflict("Idempotency key belongs to another dispatch");
+            return result(replay, requireDelivery(customerId, replay.getId()), true);
+        }
+        OutboundOrder existing = outboundOrders.lockByDispatch(customerId, dispatch.getId());
+        if (existing != null) return result(existing, requireDelivery(customerId, existing.getId()), true);
+        if (Set.of("CANCELLED", "DEPARTED", "PARTIAL_DEPARTED", "COMPLETED").contains(dispatch.getStatus())) {
+            throw conflict("Dispatch cannot be transferred to delivery in its current status");
+        }
+        List<DispatchItem> items = dispatchItems.findByDispatchOrder(customerId, dispatch.getId());
+        if (items.isEmpty()) throw conflict("Dispatch has no pallets");
+        if (items.stream().anyMatch(item -> item.getWarehousePalletId() == null)) {
+            throw conflict("All dispatch pallets must be received before transfer to delivery");
+        }
+        if (!StringUtils.hasText(dispatch.getOverseasWarehouseId())) throw conflict("Dispatch warehouse is required");
+
+        LocalDateTime now = LocalDateTime.now();
+        OutboundOrder outbound = new OutboundOrder();
+        outbound.setId(IdWorker.getId()); outbound.setCustomerId(customerId);
+        outbound.setOutboundNo("OUT" + now.format(DateTimeFormatter.BASIC_ISO_DATE) + outbound.getId());
+        outbound.setDispatchOrderId(dispatch.getId()); outbound.setDispatchNo(dispatch.getDispatchNo());
+        outbound.setOverseasWarehouseId(dispatch.getOverseasWarehouseId()); outbound.setStatus("WAIT_OUTBOUND");
+        outbound.setPackageCount(items.stream().map(DispatchItem::getPackageCount).filter(Objects::nonNull).mapToInt(Integer::intValue).sum());
+        outbound.setPalletCount(items.size()); outbound.setIdempotencyKey(request.idempotencyKey().trim());
+        outbound.setCreatedBy(operatorId); outbound.setCreatedAt(now); outbound.setUpdatedAt(now);
+        try {
+            outboundOrders.insert(outbound);
+        } catch (DuplicateKeyException e) {
+            // The unique keys are the final concurrent guard.  A client retry must observe
+            // the document created by the winning transaction rather than receive a false failure.
+            OutboundOrder concurrent = outboundOrders.findByIdempotency(customerId, request.idempotencyKey().trim());
+            if (concurrent != null && dispatch.getId().equals(concurrent.getDispatchOrderId())) {
+                return result(concurrent, requireDelivery(customerId, concurrent.getId()), true);
+            }
+            concurrent = outboundOrders.lockByDispatch(customerId, dispatch.getId());
+            if (concurrent != null) {
+                return result(concurrent, requireDelivery(customerId, concurrent.getId()), true);
+            }
+            throw conflict("Dispatch was concurrently transferred to delivery");
+        }
+
+        for (DispatchItem source : items) {
+            OutboundPalletItem item = new OutboundPalletItem();
+            item.setId(IdWorker.getId()); item.setCustomerId(customerId); item.setOutboundOrderId(outbound.getId());
+            item.setWarehousePalletId(source.getWarehousePalletId()); item.setPalletNo(source.getPalletNo());
+            item.setDestinationWarehouseId(source.getDestinationWarehouseId());
+            item.setDestinationWarehouseCode(source.getDestinationWarehouseCode());
+            item.setDestinationWarehouseName(source.getDestinationWarehouseName());
+            item.setPackageCount(Objects.requireNonNullElse(source.getPackageCount(), 0));
+            item.setOrderRefs(source.getOrderRefs()); item.setInboundCode(source.getInboundCode()); item.setCreatedAt(now);
+            outboundPallets.insert(item);
+        }
+
+        DeliveryOrder delivery = new DeliveryOrder();
+        delivery.setId(IdWorker.getId()); delivery.setCustomerId(customerId);
+        delivery.setDeliveryNo("DEL" + now.format(DateTimeFormatter.BASIC_ISO_DATE) + delivery.getId());
+        delivery.setOutboundOrderId(outbound.getId()); delivery.setOutboundNo(outbound.getOutboundNo());
+        delivery.setDispatchOrderId(dispatch.getId()); delivery.setDispatchNo(dispatch.getDispatchNo());
+        delivery.setOverseasWarehouseId(dispatch.getOverseasWarehouseId()); delivery.setStatus("WAIT_DELIVERY");
+        delivery.setPackageCount(outbound.getPackageCount()); delivery.setPalletCount(outbound.getPalletCount());
+        delivery.setIdempotencyKey(request.idempotencyKey().trim()); delivery.setCreatedBy(operatorId);
+        delivery.setCreatedAt(now); delivery.setUpdatedAt(now); deliveryOrders.insert(delivery);
+        bindTailOrders(customerId, items, outbound.getOutboundNo(), delivery.getDeliveryNo(), request.remark(), now);
+        return result(outbound, delivery, false);
+    }
+
+    public PageResult<DeliveryResponses.OutboundRow> outboundPage(String customerId, DeliveryRequests.Query query) {
+        Page<OutboundOrder> page = outboundOrders.selectPage(new Page<>(query.page(), query.size()),
+            new LambdaQueryWrapper<OutboundOrder>().eq(OutboundOrder::getCustomerId, customerId)
+                .like(StringUtils.hasText(query.documentNo()), OutboundOrder::getOutboundNo, query.documentNo())
+                .eq(StringUtils.hasText(query.warehouseId()), OutboundOrder::getOverseasWarehouseId, query.warehouseId())
+                .eq(StringUtils.hasText(query.status()), OutboundOrder::getStatus, query.status())
+                .orderByDesc(OutboundOrder::getCreatedAt));
+        return page(page, page.getRecords().stream().map(this::outboundRow).toList());
+    }
+
+    public DeliveryResponses.OutboundDetail outboundDetail(String customerId, String outboundNo,
+                                                             DeliveryRequests.PalletQuery query) {
+        OutboundOrder outbound = outboundOrders.findByNo(customerId, outboundNo);
+        if (outbound == null) throw notFound("Outbound order not found");
+        DeliveryOrder delivery = requireDelivery(customerId, outbound.getId());
+        Page<OutboundPalletItem> page = outboundPallets.selectPage(new Page<>(query.page(), query.size()),
+            new LambdaQueryWrapper<OutboundPalletItem>().eq(OutboundPalletItem::getCustomerId, customerId)
+                .eq(OutboundPalletItem::getOutboundOrderId, outbound.getId())
+                .eq(StringUtils.hasText(query.destinationWarehouseCode()),
+                    OutboundPalletItem::getDestinationWarehouseCode, query.destinationWarehouseCode())
+                .orderByAsc(OutboundPalletItem::getId));
+        return new DeliveryResponses.OutboundDetail(outboundRow(outbound), deliveryRow(delivery),
+            page(page, page.getRecords().stream().map(this::palletRow).toList()));
+    }
+
+    public PageResult<DeliveryResponses.DeliveryRow> deliveryPage(String customerId, DeliveryRequests.Query query) {
+        Page<DeliveryOrder> page = deliveryOrders.selectPage(new Page<>(query.page(), query.size()),
+            new LambdaQueryWrapper<DeliveryOrder>().eq(DeliveryOrder::getCustomerId, customerId)
+                .like(StringUtils.hasText(query.documentNo()), DeliveryOrder::getDeliveryNo, query.documentNo())
+                .eq(StringUtils.hasText(query.warehouseId()), DeliveryOrder::getOverseasWarehouseId, query.warehouseId())
+                .eq(StringUtils.hasText(query.status()), DeliveryOrder::getStatus, query.status())
+                .orderByDesc(DeliveryOrder::getCreatedAt));
+        return page(page, page.getRecords().stream().map(this::deliveryRow).toList());
+    }
+
+    public DeliveryResponses.OutboundDetail deliveryDetail(String customerId, String deliveryNo,
+                                                             DeliveryRequests.PalletQuery query) {
+        DeliveryOrder delivery = deliveryOrders.findByNo(customerId, deliveryNo);
+        if (delivery == null) throw notFound("Delivery order not found");
+        OutboundOrder outbound = outboundOrders.selectById(delivery.getOutboundOrderId());
+        if (outbound == null || !customerId.equals(outbound.getCustomerId())) throw notFound("Outbound order not found");
+        return outboundDetail(customerId, outbound.getOutboundNo(), query);
+    }
+
+    private void bindTailOrders(String customerId, List<DispatchItem> items, String outboundNo, String deliveryNo,
+                                String remark, LocalDateTime now) {
+        Set<Long> orderIds = new LinkedHashSet<>();
+        items.stream().map(DispatchItem::getOrderId).filter(Objects::nonNull).forEach(orderIds::add);
+        List<Long> palletIds = items.stream().map(DispatchItem::getPlanPalletId).filter(Objects::nonNull).distinct().toList();
+        if (!palletIds.isEmpty()) {
+            List<InboundPlanPalletAllocation> allocations = planAllocations.selectList(
+                new LambdaQueryWrapper<InboundPlanPalletAllocation>().in(InboundPlanPalletAllocation::getPalletId, palletIds));
+            List<Long> lineIds = allocations.stream().map(InboundPlanPalletAllocation::getLineId)
+                .filter(Objects::nonNull).distinct().toList();
+            if (!lineIds.isEmpty()) {
+                planLines.selectBatchIds(lineIds).stream().map(InboundPlanLine::getOrderId)
+                    .filter(Objects::nonNull).forEach(orderIds::add);
+            }
+        }
+        if (orderIds.isEmpty()) return;
+        for (LastlegOrder order : tailOrders.selectList(new LambdaQueryWrapper<LastlegOrder>()
+            .eq(LastlegOrder::getCustomerId, customerId).in(LastlegOrder::getId, orderIds))) {
+            String from = order.getCurrentStatus(); order.setOutboundOrderNo(outboundNo);
+            order.setDeliveryOrderNo(deliveryNo); order.setCurrentStatus("WAIT_OUTBOUND"); order.setUpdatedAt(now);
+            order.setSubOrderStatus("OUTBOUND:WAIT_OUTBOUND;DELIVERY:WAIT_DELIVERY");
+            tailOrders.updateById(order);
+            LastlegOrderStatusHistory history = new LastlegOrderStatusHistory(); history.setOrderId(order.getId());
+            history.setFromStatus(from); history.setToStatus("WAIT_OUTBOUND");
+            history.setEventId("TRANSFER_DELIVERY:" + deliveryNo);
+            history.setRemark(StringUtils.hasText(remark) ? remark.trim() : "Transferred to outbound and delivery documents");
+            history.setCreatedAt(now); histories.insert(history);
+        }
+    }
+
+    private DeliveryOrder requireDelivery(String customerId, Long outboundId) {
+        DeliveryOrder value = deliveryOrders.lockByOutbound(customerId, outboundId);
+        if (value == null) throw new IllegalStateException("Delivery document is missing for outbound order");
+        return value;
+    }
+    private DeliveryResponses.TransferResult result(OutboundOrder o, DeliveryOrder d, boolean replayed) {
+        return new DeliveryResponses.TransferResult(o.getDispatchNo(), o.getOutboundNo(), o.getStatus(),
+            d.getDeliveryNo(), d.getStatus(), o.getPalletCount(), o.getPackageCount(), replayed);
+    }
+    private DeliveryResponses.OutboundRow outboundRow(OutboundOrder o) { return new DeliveryResponses.OutboundRow(o.getId(), o.getOutboundNo(), o.getDispatchNo(), o.getOverseasWarehouseId(), o.getStatus(), o.getPalletCount(), o.getPackageCount(), o.getCreatedAt()); }
+    private DeliveryResponses.DeliveryRow deliveryRow(DeliveryOrder d) { return new DeliveryResponses.DeliveryRow(d.getId(), d.getDeliveryNo(), d.getOutboundNo(), d.getDispatchNo(), d.getOverseasWarehouseId(), d.getStatus(), d.getPalletCount(), d.getPackageCount(), d.getCreatedAt()); }
+    private DeliveryResponses.PalletRow palletRow(OutboundPalletItem p) { return new DeliveryResponses.PalletRow(p.getId(), p.getWarehousePalletId(), p.getPalletNo(), p.getInboundCode(), p.getOrderRefs(), p.getDestinationWarehouseId(), p.getDestinationWarehouseCode(), p.getDestinationWarehouseName(), p.getPackageCount()); }
+    private static <T> PageResult<T> page(Page<?> page, List<T> records) { return new PageResult<>(records, page.getCurrent(), page.getSize(), page.getTotal(), page.getPages()); }
+    private static ResponseStatusException conflict(String message) { return new ResponseStatusException(HttpStatus.CONFLICT, message); }
+    private static ResponseStatusException notFound(String message) { return new ResponseStatusException(HttpStatus.NOT_FOUND, message); }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/DiscardMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.discard;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.discard.mapper")
+public class DiscardMapperConfiguration {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/controller/CargoDiscardController.java

@@ -0,0 +1,84 @@
+package com.baiyue.lastleg.discard.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.discard.dto.CargoDiscardRequests;
+import com.baiyue.lastleg.discard.dto.CargoDiscardResponses;
+import com.baiyue.lastleg.discard.service.CargoDiscardService;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg/cargo-discards")
+public class CargoDiscardController {
+    @Resource private CargoDiscardService service;
+
+    @GetMapping("/inventory-candidates")
+    public ApiResponse<List<CargoDiscardResponses.Candidate>> candidates(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @RequestParam(required = false) String inboundCode) {
+        return ApiResponse.success(service.candidates(scope(user, customerId), inboundCode));
+    }
+
+    @PostMapping
+    public ApiResponse<CargoDiscardResponses.Detail> create(@AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId, @Valid @RequestBody CargoDiscardRequests.Create request) {
+        return ApiResponse.success(service.create(scope(user, customerId), operator(user), request));
+    }
+
+    @GetMapping
+    public ApiResponse<PageResult<CargoDiscardResponses.Summary>> page(@AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId, @Valid CargoDiscardRequests.Query query) {
+        return ApiResponse.success(service.page(scope(user, customerId), query));
+    }
+
+    @GetMapping("/{discardNo}")
+    public ApiResponse<CargoDiscardResponses.Detail> detail(@AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId, @PathVariable String discardNo) {
+        return ApiResponse.success(service.detail(scope(user, customerId), discardNo));
+    }
+
+    @PostMapping("/{discardNo}/review")
+    public ApiResponse<CargoDiscardResponses.Detail> review(@AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId, @PathVariable String discardNo,
+        @Valid @RequestBody CargoDiscardRequests.Review request) {
+        requireApprovalPermission(user);
+        return ApiResponse.success(service.review(scope(user, customerId), discardNo, operator(user), request));
+    }
+
+    private String scope(AuthenticatedUser user, String requested) {
+        if (user == null || user.tenantId() == null) throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requested == null || requested.isBlank() || "0".equals(requested)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Platform request must specify target tenant");
+            }
+            return requested.trim();
+        }
+        return String.valueOf(user.tenantId());
+    }
+
+    private void requireApprovalPermission(AuthenticatedUser user) {
+        if (user == null || user.permissions() == null
+            || !user.permissions().contains(CargoDiscardService.APPROVAL_PERMISSION)) {
+            throw new ResponseStatusException(HttpStatus.FORBIDDEN, "Cargo discard approval permission is required");
+        }
+    }
+
+    private String operator(AuthenticatedUser user) {
+        return user.userId() == null ? user.username() : String.valueOf(user.userId());
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/dto/CargoDiscardRequests.java

@@ -0,0 +1,30 @@
+package com.baiyue.lastleg.discard.dto;
+
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Positive;
+import jakarta.validation.constraints.Size;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public final class CargoDiscardRequests {
+    private CargoDiscardRequests() {}
+
+    public record Create(@NotEmpty @Size(max = 200) List<@Valid Item> items,
+                         @NotBlank @Size(max = 255) String idempotencyKey,
+                         @Size(max = 1000) String remark) {}
+
+    public record Item(@NotNull Long orderId, @NotBlank @Size(max = 128) String skuCode,
+                       @Positive int discardPackages) {}
+
+    public record Review(@NotBlank String decision, @Size(max = 1000) String remark) {}
+
+    public record Query(@Min(1) long page, @Min(1) @Max(200) long size,
+                        String discardNo, String inboundCode, String overseasWarehouseId,
+                        String status, LocalDateTime createdFrom, LocalDateTime createdTo) {}
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/dto/CargoDiscardResponses.java

@@ -0,0 +1,30 @@
+package com.baiyue.lastleg.discard.dto;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+public final class CargoDiscardResponses {
+    private CargoDiscardResponses() {}
+
+    public record Candidate(Long orderId, String inboundCode, String inboundOrderNo,
+                            String overseasWarehouseId, String overseasWarehouseName,
+                            LocalDateTime inboundCreatedAt, long availablePackages,
+                            List<CandidateSku> skus) {}
+    public record CandidateSku(String skuCode, String productName, long availablePackages) {}
+
+    public record Summary(Long id, String discardNo, String inboundCodes,
+                          String overseasWarehouseId, String overseasWarehouseName,
+                          int totalPackages, BigDecimal totalFee, String currency, String status,
+                          String createdBy, LocalDateTime createdAt, LocalDateTime reviewedAt) {}
+
+    public record Item(Long id, Long orderId, String inboundCode, String skuCode,
+                       String productName, int availablePackagesSnapshot, int discardPackages) {}
+
+    public record History(String fromStatus, String toStatus, String operatorId,
+                          String remark, LocalDateTime createdAt) {}
+
+    public record Detail(Summary summary, BigDecimal feePerPackage, String remark,
+                         String reviewedBy, String reviewRemark, List<Item> items,
+                         List<History> histories) {}
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/entity/CargoDiscardApplication.java

@@ -0,0 +1,34 @@
+package com.baiyue.lastleg.discard.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_cargo_discard_application")
+public class CargoDiscardApplication {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String customerId;
+    private String discardNo;
+    private String overseasWarehouseId;
+    private String overseasWarehouseName;
+    private String inboundCodes;
+    private Integer totalPackages;
+    private BigDecimal feePerPackage;
+    private BigDecimal totalFee;
+    private String currency;
+    private String status;
+    private String remark;
+    private String idempotencyKey;
+    private String requestHash;
+    private String createdBy;
+    private String reviewedBy;
+    private String reviewRemark;
+    private LocalDateTime reviewedAt;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/entity/CargoDiscardCarton.java

@@ -0,0 +1,20 @@
+package com.baiyue.lastleg.discard.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_cargo_discard_carton")
+public class CargoDiscardCarton {
+    @TableId(type = IdType.INPUT) private Long id;
+    private Long applicationId;
+    private Long itemId;
+    private String customerId;
+    private Long cartonId;
+    private String cartonMark;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/entity/CargoDiscardItem.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.discard.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_cargo_discard_item")
+public class CargoDiscardItem {
+    @TableId(type = IdType.INPUT) private Long id;
+    private Long applicationId;
+    private String customerId;
+    private Long orderId;
+    private String inboundCode;
+    private Long profileId;
+    private Long skuInventoryId;
+    private String skuCode;
+    private String productName;
+    private Integer availablePackagesSnapshot;
+    private Integer discardPackages;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/entity/CargoDiscardStatusHistory.java

@@ -0,0 +1,21 @@
+package com.baiyue.lastleg.discard.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_cargo_discard_status_history")
+public class CargoDiscardStatusHistory {
+    @TableId(type = IdType.INPUT) private Long id;
+    private Long applicationId;
+    private String customerId;
+    private String fromStatus;
+    private String toStatus;
+    private String operatorId;
+    private String remark;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/mapper/CargoDiscardApplicationMapper.java

@@ -0,0 +1,19 @@
+package com.baiyue.lastleg.discard.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.discard.entity.CargoDiscardApplication;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface CargoDiscardApplicationMapper extends BaseMapper<CargoDiscardApplication> {
+    @Select("SELECT * FROM ll_cargo_discard_application WHERE customer_id=#{customerId} AND discard_no=#{discardNo} LIMIT 1")
+    CargoDiscardApplication findNo(@Param("customerId") String customerId, @Param("discardNo") String discardNo);
+
+    @Select("SELECT * FROM ll_cargo_discard_application WHERE customer_id=#{customerId} AND idempotency_key=#{key} LIMIT 1")
+    CargoDiscardApplication findKey(@Param("customerId") String customerId, @Param("key") String key);
+
+    @Select("SELECT * FROM ll_cargo_discard_application WHERE customer_id=#{customerId} AND discard_no=#{discardNo} LIMIT 1 FOR UPDATE")
+    CargoDiscardApplication lockNo(@Param("customerId") String customerId, @Param("discardNo") String discardNo);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/mapper/CargoDiscardCartonMapper.java

@@ -0,0 +1,16 @@
+package com.baiyue.lastleg.discard.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.discard.entity.CargoDiscardCarton;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface CargoDiscardCartonMapper extends BaseMapper<CargoDiscardCarton> {
+    @Select("SELECT * FROM ll_cargo_discard_carton WHERE customer_id=#{customerId} AND application_id=#{applicationId} ORDER BY id")
+    List<CargoDiscardCarton> listApplication(@Param("customerId") String customerId,
+                                             @Param("applicationId") Long applicationId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/mapper/CargoDiscardInventoryMapper.java

@@ -0,0 +1,69 @@
+package com.baiyue.lastleg.discard.mapper;
+
+import com.baiyue.lastleg.discard.model.CargoDiscardCandidateRow;
+import com.baiyue.lastleg.dropship.entity.DropshipCarton;
+import com.baiyue.lastleg.dropship.entity.DropshipSkuInventory;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+import java.util.List;
+
+@Mapper
+public interface CargoDiscardInventoryMapper {
+    @Select("<script>SELECT o.id order_id,o.inbound_code,o.inbound_order_no,o.overseas_warehouse_id," +
+        "o.overseas_warehouse_name,o.created_at,p.id profile_id,s.id sku_inventory_id,s.sku_code,s.product_name," +
+        "COUNT(c.id) available_packages FROM ll_order o " +
+        "JOIN ll_dropship_order_profile p ON p.customer_id=o.customer_id AND p.order_id=o.id " +
+        "JOIN ll_dropship_sku_inventory s ON s.customer_id=o.customer_id AND s.order_id=o.id AND s.profile_id=p.id " +
+        "LEFT JOIN ll_dropship_carton c ON c.customer_id=o.customer_id AND c.order_id=o.id " +
+        "AND c.profile_id=p.id AND c.sku_code=s.sku_code AND c.status='AVAILABLE' " +
+        "WHERE o.customer_id=#{customerId} AND o.order_type='ONE_CLICK_DROPSHIP' " +
+        "<if test='inboundCode != null and inboundCode != \"\"'>AND o.inbound_code LIKE CONCAT('%',#{inboundCode},'%') </if>" +
+        "GROUP BY o.id,o.inbound_code,o.inbound_order_no,o.overseas_warehouse_id,o.overseas_warehouse_name,o.created_at," +
+        "p.id,s.id,s.sku_code,s.product_name HAVING COUNT(c.id)&gt;0 ORDER BY o.created_at DESC,o.id DESC,p.id,s.sku_code LIMIT 500</script>")
+    List<CargoDiscardCandidateRow> candidates(@Param("customerId") String customerId,
+                                              @Param("inboundCode") String inboundCode);
+
+    @Select("SELECT COUNT(*) FROM ll_dropship_carton WHERE customer_id=#{customerId} AND order_id=#{orderId} " +
+        "AND sku_code=#{skuCode} AND status='AVAILABLE'")
+    long countAvailable(@Param("customerId") String customerId, @Param("orderId") Long orderId,
+                        @Param("skuCode") String skuCode);
+
+    @Select("SELECT COUNT(*) FROM ll_dropship_carton WHERE customer_id=#{customerId} AND order_id=#{orderId} " +
+        "AND profile_id=#{profileId} AND sku_code=#{skuCode} AND status='AVAILABLE'")
+    long countAvailableProfile(@Param("customerId") String customerId, @Param("orderId") Long orderId,
+                               @Param("profileId") Long profileId, @Param("skuCode") String skuCode);
+
+    @Select("SELECT * FROM ll_dropship_carton WHERE customer_id=#{customerId} AND order_id=#{orderId} " +
+        "AND sku_code=#{skuCode} AND status='AVAILABLE' ORDER BY profile_id,carton_sequence,id LIMIT #{limit} FOR UPDATE")
+    List<DropshipCarton> lockAvailable(@Param("customerId") String customerId, @Param("orderId") Long orderId,
+                                       @Param("skuCode") String skuCode, @Param("limit") int limit);
+
+    @Update("UPDATE ll_dropship_carton SET status=#{toStatus},version=version+1,updated_at=NOW(3) " +
+        "WHERE customer_id=#{customerId} AND id=#{cartonId} AND status=#{fromStatus}")
+    int changeCartonStatus(@Param("customerId") String customerId, @Param("cartonId") Long cartonId,
+                           @Param("fromStatus") String fromStatus, @Param("toStatus") String toStatus);
+
+    @Select("SELECT * FROM ll_dropship_carton WHERE customer_id=#{customerId} AND id=#{cartonId} LIMIT 1 FOR UPDATE")
+    DropshipCarton lockCarton(@Param("customerId") String customerId, @Param("cartonId") Long cartonId);
+
+    @Select("SELECT * FROM ll_dropship_sku_inventory WHERE customer_id=#{customerId} AND id=#{id} LIMIT 1 FOR UPDATE")
+    DropshipSkuInventory lockSkuInventory(@Param("customerId") String customerId, @Param("id") Long id);
+
+    @Select("SELECT * FROM ll_dropship_sku_inventory WHERE customer_id=#{customerId} AND order_id=#{orderId} " +
+        "AND profile_id=#{profileId} AND sku_code=#{skuCode} LIMIT 1 FOR UPDATE")
+    DropshipSkuInventory lockSkuInventoryDimension(@Param("customerId") String customerId,
+                                                    @Param("orderId") Long orderId,
+                                                    @Param("profileId") Long profileId,
+                                                    @Param("skuCode") String skuCode);
+
+    @Update("UPDATE ll_dropship_sku_inventory SET package_count=package_count-#{packages},updated_at=NOW(3) " +
+        "WHERE customer_id=#{customerId} AND id=#{id} AND package_count>=#{packages}")
+    int deductSkuInventory(@Param("customerId") String customerId, @Param("id") Long id,
+                           @Param("packages") int packages);
+
+    @Select("SELECT package_count FROM ll_dropship_sku_inventory WHERE customer_id=#{customerId} AND id=#{id}")
+    Long skuPackages(@Param("customerId") String customerId, @Param("id") Long id);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/mapper/CargoDiscardItemMapper.java

@@ -0,0 +1,16 @@
+package com.baiyue.lastleg.discard.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.discard.entity.CargoDiscardItem;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface CargoDiscardItemMapper extends BaseMapper<CargoDiscardItem> {
+    @Select("SELECT * FROM ll_cargo_discard_item WHERE customer_id=#{customerId} AND application_id=#{applicationId} ORDER BY inbound_code,sku_code,profile_id")
+    List<CargoDiscardItem> listApplication(@Param("customerId") String customerId,
+                                           @Param("applicationId") Long applicationId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/mapper/CargoDiscardStatusHistoryMapper.java

@@ -0,0 +1,16 @@
+package com.baiyue.lastleg.discard.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.discard.entity.CargoDiscardStatusHistory;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface CargoDiscardStatusHistoryMapper extends BaseMapper<CargoDiscardStatusHistory> {
+    @Select("SELECT * FROM ll_cargo_discard_status_history WHERE customer_id=#{customerId} AND application_id=#{applicationId} ORDER BY created_at,id")
+    List<CargoDiscardStatusHistory> listApplication(@Param("customerId") String customerId,
+                                                    @Param("applicationId") Long applicationId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/model/CargoDiscardCandidateRow.java

@@ -0,0 +1,20 @@
+package com.baiyue.lastleg.discard.model;
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public class CargoDiscardCandidateRow {
+    private Long orderId;
+    private String inboundCode;
+    private String inboundOrderNo;
+    private String overseasWarehouseId;
+    private String overseasWarehouseName;
+    private LocalDateTime createdAt;
+    private Long profileId;
+    private Long skuInventoryId;
+    private String skuCode;
+    private String productName;
+    private Long availablePackages;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/service/CargoDiscardInventoryAdjustmentService.java

@@ -0,0 +1,98 @@
+package com.baiyue.lastleg.discard.service;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.discard.entity.CargoDiscardApplication;
+import com.baiyue.lastleg.discard.entity.CargoDiscardCarton;
+import com.baiyue.lastleg.discard.entity.CargoDiscardItem;
+import com.baiyue.lastleg.discard.mapper.CargoDiscardInventoryMapper;
+import com.baiyue.lastleg.dropship.entity.DropshipCarton;
+import com.baiyue.lastleg.dropship.entity.DropshipCartonLedger;
+import com.baiyue.lastleg.dropship.entity.DropshipSkuInventory;
+import com.baiyue.lastleg.dropship.mapper.DropshipCartonLedgerMapper;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Map;
+
+/** Final inventory mutation for a warehouse-approved cargo discard. */
+@Service
+public class CargoDiscardInventoryAdjustmentService {
+    @Resource private CargoDiscardInventoryMapper inventory;
+    @Resource private DropshipCartonLedgerMapper cartonLedgers;
+
+    @Transactional(propagation = Propagation.MANDATORY)
+    public AdjustmentResult discard(String customerId, CargoDiscardApplication application,
+                                    List<CargoDiscardItem> items,
+                                    Map<Long, List<CargoDiscardCarton>> linksByItem,
+                                    String operatorId, LocalDateTime occurredAt) {
+        long beforePackages = 0;
+        long discardedPackages = 0;
+        long afterPackages = 0;
+        for (CargoDiscardItem item : items) {
+            DropshipSkuInventory sku = inventory.lockSkuInventory(customerId, item.getSkuInventoryId());
+            if (sku == null) throw conflict("SKU inventory is missing during discard approval: " + item.getSkuCode());
+            long before = value(sku.getPackageCount());
+            int discarded = item.getDiscardPackages();
+            if (before < discarded || inventory.deductSkuInventory(customerId, sku.getId(), discarded) != 1) {
+                throw conflict("SKU inventory is insufficient during discard approval: " + item.getSkuCode());
+            }
+            List<CargoDiscardCarton> links = linksByItem.getOrDefault(item.getId(), List.of());
+            if (links.size() != discarded) throw conflict("Reserved discard cartons are incomplete");
+            for (CargoDiscardCarton link : links) {
+                DropshipCarton carton = inventory.lockCarton(customerId, link.getCartonId());
+                if (carton == null || inventory.changeCartonStatus(customerId, carton.getId(),
+                    "DISCARD_PENDING", "DISCARDED") != 1) throw conflict("Reserved cargo status changed before approval");
+                cartonLedgers.insert(discardFact(customerId, application, item, carton, operatorId, occurredAt));
+            }
+            Long persistedAfter = inventory.skuPackages(customerId, sku.getId());
+            long expectedAfter = before - discarded;
+            if (persistedAfter == null || persistedAfter != expectedAfter) {
+                throw conflict("Cargo discard package conservation check failed for SKU " + item.getSkuCode());
+            }
+            beforePackages = Math.addExact(beforePackages, before);
+            discardedPackages = Math.addExact(discardedPackages, discarded);
+            afterPackages = Math.addExact(afterPackages, persistedAfter);
+        }
+        if (beforePackages - discardedPackages != afterPackages
+            || discardedPackages != application.getTotalPackages()) {
+            throw conflict("Cargo discard application package conservation check failed");
+        }
+        return new AdjustmentResult(beforePackages, discardedPackages, afterPackages);
+    }
+
+    private DropshipCartonLedger discardFact(String customerId, CargoDiscardApplication application,
+                                              CargoDiscardItem item, DropshipCarton carton,
+                                              String operatorId, LocalDateTime occurredAt) {
+        DropshipCartonLedger fact = new DropshipCartonLedger();
+        fact.setId(IdWorker.getId()); fact.setCustomerId(customerId); fact.setOrderId(item.getOrderId());
+        fact.setCartonId(carton.getId()); fact.setCartonMark(carton.getCartonMark()); fact.setSkuCode(item.getSkuCode());
+        fact.setOperationType("DISCARD"); fact.setBeforePackages(1L); fact.setDeltaPackages(-1L); fact.setAfterPackages(0L);
+        fact.setBusinessOrderNo(application.getDiscardNo());
+        fact.setIdempotencyKey("CARGO_DISCARD:" + application.getId() + ":" + carton.getId());
+        fact.setRemark("Warehouse discard approved by " + operatorId + remarkSuffix(application.getRemark()));
+        fact.setOccurredAt(occurredAt); fact.setCreatedAt(occurredAt);
+        return fact;
+    }
+
+    private static long value(Long value) { return value == null ? 0L : value; }
+    private static String remarkSuffix(String value) {
+        return value == null || value.isBlank() ? "" : "; " + value.trim();
+    }
+    private static ResponseStatusException conflict(String message) {
+        return new ResponseStatusException(HttpStatus.CONFLICT, message);
+    }
+
+    public record AdjustmentResult(long beforePackages, long discardedPackages, long afterPackages) {
+        public String auditRemark(String reviewRemark) {
+            String prefix = reviewRemark == null || reviewRemark.isBlank() ? "" : reviewRemark.trim() + "; ";
+            return prefix + "inventoryBefore=" + beforePackages + ", discarded=" + discardedPackages
+                + ", inventoryAfter=" + afterPackages;
+        }
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/discard/service/CargoDiscardService.java

@@ -0,0 +1,303 @@
+package com.baiyue.lastleg.discard.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.lastleg.discard.dto.CargoDiscardRequests;
+import com.baiyue.lastleg.discard.dto.CargoDiscardResponses;
+import com.baiyue.lastleg.discard.entity.CargoDiscardApplication;
+import com.baiyue.lastleg.discard.entity.CargoDiscardCarton;
+import com.baiyue.lastleg.discard.entity.CargoDiscardItem;
+import com.baiyue.lastleg.discard.entity.CargoDiscardStatusHistory;
+import com.baiyue.lastleg.discard.mapper.CargoDiscardApplicationMapper;
+import com.baiyue.lastleg.discard.mapper.CargoDiscardCartonMapper;
+import com.baiyue.lastleg.discard.mapper.CargoDiscardInventoryMapper;
+import com.baiyue.lastleg.discard.mapper.CargoDiscardItemMapper;
+import com.baiyue.lastleg.discard.mapper.CargoDiscardStatusHistoryMapper;
+import com.baiyue.lastleg.discard.model.CargoDiscardCandidateRow;
+import com.baiyue.lastleg.dropship.entity.DropshipCarton;
+import com.baiyue.lastleg.dropship.entity.DropshipSkuInventory;
+import com.baiyue.lastleg.entity.LastlegOrder;
+import com.baiyue.lastleg.mapper.LastlegOrderMapper;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.annotation.Resource;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+@Service
+public class CargoDiscardService {
+    public static final String APPROVAL_PERMISSION = "lastleg:cargo-discard:approve";
+    public static final String PENDING_REVIEW = "PENDING_REVIEW";
+    public static final String APPROVED = "APPROVED";
+    public static final String REJECTED = "REJECTED";
+    private static final Set<String> STATUSES = Set.of(PENDING_REVIEW, APPROVED, REJECTED);
+
+    @Resource private CargoDiscardApplicationMapper applications;
+    @Resource private CargoDiscardItemMapper items;
+    @Resource private CargoDiscardCartonMapper discardCartons;
+    @Resource private CargoDiscardStatusHistoryMapper histories;
+    @Resource private CargoDiscardInventoryMapper inventory;
+    @Resource private CargoDiscardInventoryAdjustmentService adjustments;
+    @Resource private LastlegOrderMapper orders;
+    @Resource private ObjectMapper objectMapper;
+    @Value("${baiyue.lastleg.cargo-discard.fee-per-package-usd:5.00}")
+    private BigDecimal feePerPackage = new BigDecimal("5.00");
+
+    public List<CargoDiscardResponses.Candidate> candidates(String customerId, String inboundCode) {
+        List<CargoDiscardCandidateRow> rows = inventory.candidates(customerId, trim(inboundCode));
+        Map<Long, CandidateAccumulator> grouped = new LinkedHashMap<>();
+        for (CargoDiscardCandidateRow row : rows) {
+            CandidateAccumulator value = grouped.computeIfAbsent(row.getOrderId(), ignored -> new CandidateAccumulator(row));
+            value.add(row);
+        }
+        return grouped.values().stream().map(CandidateAccumulator::response).toList();
+    }
+
+    @Transactional
+    public CargoDiscardResponses.Detail create(String customerId, String operatorId,
+                                               CargoDiscardRequests.Create request) {
+        String key = request.idempotencyKey().trim();
+        String requestHash = hash(request);
+        CargoDiscardApplication replay = applications.findKey(customerId, key);
+        if (replay != null) {
+            if (!requestHash.equals(replay.getRequestHash())) {
+                throw conflict("Idempotency key was reused with different cargo discard data");
+            }
+            return detail(customerId, replay.getDiscardNo());
+        }
+        Set<String> requestedDimensions = new LinkedHashSet<>();
+        Map<Long, LastlegOrder> orderCache = new HashMap<>();
+        String warehouseId = null;
+        String warehouseName = null;
+        int total = 0;
+        for (CargoDiscardRequests.Item input : request.items()) {
+            String dimension = input.orderId() + ":" + input.skuCode().trim();
+            if (!requestedDimensions.add(dimension)) throw badRequest("Duplicate order/SKU discard item: " + dimension);
+            LastlegOrder order = requireDropshipOrder(customerId, input.orderId());
+            orderCache.put(order.getId(), order);
+            if (warehouseId == null) {
+                warehouseId = required(order.getOverseasWarehouseId(), "Order has no operating overseas warehouse");
+                warehouseName = trim(order.getOverseasWarehouseName());
+            } else if (!warehouseId.equals(order.getOverseasWarehouseId())) {
+                throw conflict("One cargo discard application cannot span operating warehouses");
+            }
+            total = Math.addExact(total, input.discardPackages());
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+        CargoDiscardApplication application = new CargoDiscardApplication();
+        application.setId(IdWorker.getId()); application.setCustomerId(customerId);
+        application.setDiscardNo("FH" + now.format(DateTimeFormatter.BASIC_ISO_DATE) + application.getId());
+        application.setOverseasWarehouseId(warehouseId); application.setOverseasWarehouseName(warehouseName);
+        application.setInboundCodes(orderCache.values().stream().map(LastlegOrder::getInboundCode)
+            .distinct().sorted().collect(java.util.stream.Collectors.joining(",")));
+        application.setTotalPackages(total); application.setFeePerPackage(feePerPackage);
+        application.setTotalFee(feePerPackage.multiply(BigDecimal.valueOf(total)));
+        application.setCurrency("USD"); application.setStatus(PENDING_REVIEW);
+        application.setRemark(trim(request.remark())); application.setIdempotencyKey(key);
+        application.setRequestHash(requestHash); application.setCreatedBy(operatorId);
+        application.setCreatedAt(now); application.setUpdatedAt(now);
+        applications.insert(application);
+
+        for (CargoDiscardRequests.Item input : request.items()) {
+            reserve(customerId, application, orderCache.get(input.orderId()), input, now);
+        }
+        history(customerId, application.getId(), null, PENDING_REVIEW, operatorId, request.remark(), now);
+        return detail(customerId, application.getDiscardNo());
+    }
+
+    public PageResult<CargoDiscardResponses.Summary> page(String customerId, CargoDiscardRequests.Query query) {
+        validateQuery(query);
+        LambdaQueryWrapper<CargoDiscardApplication> wrapper = new LambdaQueryWrapper<CargoDiscardApplication>()
+            .eq(CargoDiscardApplication::getCustomerId, customerId)
+            .like(StringUtils.hasText(query.discardNo()), CargoDiscardApplication::getDiscardNo, query.discardNo())
+            .like(StringUtils.hasText(query.inboundCode()), CargoDiscardApplication::getInboundCodes, query.inboundCode())
+            .eq(StringUtils.hasText(query.overseasWarehouseId()), CargoDiscardApplication::getOverseasWarehouseId,
+                query.overseasWarehouseId())
+            .eq(StringUtils.hasText(query.status()), CargoDiscardApplication::getStatus, query.status())
+            .ge(query.createdFrom() != null, CargoDiscardApplication::getCreatedAt, query.createdFrom())
+            .le(query.createdTo() != null, CargoDiscardApplication::getCreatedAt, query.createdTo())
+            .orderByDesc(CargoDiscardApplication::getCreatedAt).orderByDesc(CargoDiscardApplication::getId);
+        Page<CargoDiscardApplication> result = applications.selectPage(Page.of(query.page(), query.size()), wrapper);
+        List<CargoDiscardResponses.Summary> records = result.getRecords().stream().map(this::summary).toList();
+        return new PageResult<>(records, query.page(), query.size(), result.getTotal(), result.getPages());
+    }
+
+    public CargoDiscardResponses.Detail detail(String customerId, String discardNo) {
+        CargoDiscardApplication application = applications.findNo(customerId, discardNo);
+        if (application == null) throw notFound("Cargo discard application not found");
+        List<CargoDiscardResponses.Item> itemViews = items.listApplication(customerId, application.getId()).stream()
+            .map(value -> new CargoDiscardResponses.Item(value.getId(), value.getOrderId(), value.getInboundCode(),
+                value.getSkuCode(), value.getProductName(), value.getAvailablePackagesSnapshot(), value.getDiscardPackages()))
+            .toList();
+        List<CargoDiscardResponses.History> historyViews = histories.listApplication(customerId, application.getId()).stream()
+            .map(value -> new CargoDiscardResponses.History(value.getFromStatus(), value.getToStatus(),
+                value.getOperatorId(), value.getRemark(), value.getCreatedAt())).toList();
+        return new CargoDiscardResponses.Detail(summary(application), application.getFeePerPackage(),
+            application.getRemark(), application.getReviewedBy(), application.getReviewRemark(), itemViews, historyViews);
+    }
+
+    @Transactional
+    public CargoDiscardResponses.Detail review(String customerId, String discardNo, String operatorId,
+                                               CargoDiscardRequests.Review request) {
+        String decision = request.decision().trim().toUpperCase();
+        String next = switch (decision) {
+            case "APPROVE", APPROVED -> APPROVED;
+            case "REJECT", REJECTED -> REJECTED;
+            default -> throw badRequest("Review decision must be APPROVE or REJECT");
+        };
+        CargoDiscardApplication application = applications.lockNo(customerId, discardNo);
+        if (application == null) throw notFound("Cargo discard application not found");
+        if (next.equals(application.getStatus())) return detail(customerId, discardNo);
+        if (!PENDING_REVIEW.equals(application.getStatus())) throw conflict("Cargo discard application was already reviewed");
+
+        List<CargoDiscardItem> applicationItems = items.listApplication(customerId, application.getId());
+        List<CargoDiscardCarton> links = discardCartons.listApplication(customerId, application.getId());
+        Map<Long, List<CargoDiscardCarton>> linksByItem = links.stream()
+            .collect(java.util.stream.Collectors.groupingBy(CargoDiscardCarton::getItemId));
+        String historyRemark = request.remark();
+        if (APPROVED.equals(next)) {
+            CargoDiscardInventoryAdjustmentService.AdjustmentResult result = adjustments.discard(
+                customerId, application, applicationItems, linksByItem, operatorId, now());
+            historyRemark = result.auditRemark(request.remark());
+        } else {
+            release(customerId, links);
+        }
+
+        LocalDateTime reviewedAt = now();
+        application.setStatus(next); application.setReviewedBy(operatorId);
+        application.setReviewRemark(trim(request.remark())); application.setReviewedAt(reviewedAt);
+        application.setUpdatedAt(reviewedAt); applications.updateById(application);
+        history(customerId, application.getId(), PENDING_REVIEW, next, operatorId, historyRemark, reviewedAt);
+        return detail(customerId, discardNo);
+    }
+
+    private void reserve(String customerId, CargoDiscardApplication application, LastlegOrder order,
+                         CargoDiscardRequests.Item input, LocalDateTime now) {
+        String skuCode = input.skuCode().trim();
+        if (inventory.countAvailable(customerId, order.getId(), skuCode) < input.discardPackages()) {
+            throw conflict("Insufficient available packages for SKU " + skuCode + " on inbound " + order.getInboundCode());
+        }
+        List<DropshipCarton> selected = inventory.lockAvailable(customerId, order.getId(), skuCode, input.discardPackages());
+        if (selected.size() != input.discardPackages()) throw conflict("Available cargo changed; retry the discard request");
+        Map<Long, List<DropshipCarton>> byProfile = selected.stream()
+            .collect(java.util.stream.Collectors.groupingBy(DropshipCarton::getProfileId, LinkedHashMap::new,
+                java.util.stream.Collectors.toList()));
+        for (Map.Entry<Long, List<DropshipCarton>> entry : byProfile.entrySet()) {
+            DropshipSkuInventory sku = inventory.lockSkuInventoryDimension(customerId, order.getId(), entry.getKey(), skuCode);
+            if (sku == null) throw conflict("SKU inventory disappeared while reserving cargo");
+            CargoDiscardItem item = new CargoDiscardItem();
+            item.setId(IdWorker.getId()); item.setApplicationId(application.getId()); item.setCustomerId(customerId);
+            item.setOrderId(order.getId()); item.setInboundCode(order.getInboundCode()); item.setProfileId(entry.getKey());
+            item.setSkuInventoryId(sku.getId()); item.setSkuCode(skuCode); item.setProductName(sku.getProductName());
+            item.setAvailablePackagesSnapshot(Math.toIntExact(inventory.countAvailableProfile(
+                customerId, order.getId(), entry.getKey(), skuCode)));
+            item.setDiscardPackages(entry.getValue().size()); item.setCreatedAt(now); items.insert(item);
+            for (DropshipCarton carton : entry.getValue()) {
+                if (inventory.changeCartonStatus(customerId, carton.getId(), "AVAILABLE", "DISCARD_PENDING") != 1) {
+                    throw conflict("Cargo was reserved concurrently; retry the discard request");
+                }
+                CargoDiscardCarton link = new CargoDiscardCarton();
+                link.setId(IdWorker.getId()); link.setApplicationId(application.getId()); link.setItemId(item.getId());
+                link.setCustomerId(customerId); link.setCartonId(carton.getId()); link.setCartonMark(carton.getCartonMark());
+                link.setCreatedAt(now); discardCartons.insert(link);
+            }
+        }
+    }
+
+    private void release(String customerId, List<CargoDiscardCarton> links) {
+        for (CargoDiscardCarton link : links) {
+            if (inventory.changeCartonStatus(customerId, link.getCartonId(), "DISCARD_PENDING", "AVAILABLE") != 1) {
+                throw conflict("Reserved cargo status changed before rejection");
+            }
+        }
+    }
+
+    private LastlegOrder requireDropshipOrder(String customerId, Long orderId) {
+        LastlegOrder order = orders.selectById(orderId);
+        if (order == null || !customerId.equals(order.getCustomerId())) throw notFound("Inbound order not found");
+        if (!"ONE_CLICK_DROPSHIP".equals(order.getOrderType())) {
+            throw conflict("Cargo discard currently requires SKU/carton inventory from a one-click dropship order");
+        }
+        return order;
+    }
+
+    private CargoDiscardResponses.Summary summary(CargoDiscardApplication value) {
+        return new CargoDiscardResponses.Summary(value.getId(), value.getDiscardNo(), value.getInboundCodes(),
+            value.getOverseasWarehouseId(), value.getOverseasWarehouseName(), value.getTotalPackages(),
+            value.getTotalFee(), value.getCurrency(), value.getStatus(), value.getCreatedBy(), value.getCreatedAt(),
+            value.getReviewedAt());
+    }
+
+    private void history(String customerId, Long applicationId, String from, String to, String operatorId,
+                         String remark, LocalDateTime createdAt) {
+        CargoDiscardStatusHistory value = new CargoDiscardStatusHistory();
+        value.setId(IdWorker.getId()); value.setApplicationId(applicationId); value.setCustomerId(customerId);
+        value.setFromStatus(from); value.setToStatus(to); value.setOperatorId(operatorId);
+        value.setRemark(trim(remark)); value.setCreatedAt(createdAt); histories.insert(value);
+    }
+
+    private void validateQuery(CargoDiscardRequests.Query query) {
+        if (StringUtils.hasText(query.status()) && !STATUSES.contains(query.status())) throw badRequest("Unsupported discard status");
+        if (query.createdFrom() != null && query.createdTo() != null && query.createdFrom().isAfter(query.createdTo())) {
+            throw badRequest("createdFrom must not be after createdTo");
+        }
+    }
+
+    private String hash(Object value) {
+        try {
+            byte[] json = objectMapper.writeValueAsBytes(value);
+            return java.util.HexFormat.of().formatHex(MessageDigest.getInstance("SHA-256").digest(json));
+        } catch (JsonProcessingException | NoSuchAlgorithmException exception) {
+            throw new IllegalStateException("Cannot hash cargo discard request", exception);
+        }
+    }
+
+    private static LocalDateTime now() { return LocalDateTime.now(); }
+    private static String trim(String value) { return value == null || value.isBlank() ? null : value.trim(); }
+    private static String required(String value, String message) { String result = trim(value); if (result == null) throw conflict(message); return result; }
+    private static ResponseStatusException badRequest(String message) { return new ResponseStatusException(HttpStatus.BAD_REQUEST, message); }
+    private static ResponseStatusException conflict(String message) { return new ResponseStatusException(HttpStatus.CONFLICT, message); }
+    private static ResponseStatusException notFound(String message) { return new ResponseStatusException(HttpStatus.NOT_FOUND, message); }
+
+    private static final class CandidateAccumulator {
+        private final CargoDiscardCandidateRow first;
+        private final Map<String, CandidateSkuAccumulator> skus = new LinkedHashMap<>();
+        private CandidateAccumulator(CargoDiscardCandidateRow first) { this.first = first; }
+        private void add(CargoDiscardCandidateRow row) {
+            skus.computeIfAbsent(row.getSkuCode(), ignored -> new CandidateSkuAccumulator(row.getSkuCode(), row.getProductName()))
+                .packages += row.getAvailablePackages() == null ? 0 : row.getAvailablePackages();
+        }
+        private CargoDiscardResponses.Candidate response() {
+            List<CargoDiscardResponses.CandidateSku> skuViews = skus.values().stream()
+                .map(value -> new CargoDiscardResponses.CandidateSku(value.skuCode, value.productName, value.packages)).toList();
+            long packages = skuViews.stream().mapToLong(CargoDiscardResponses.CandidateSku::availablePackages).sum();
+            return new CargoDiscardResponses.Candidate(first.getOrderId(), first.getInboundCode(), first.getInboundOrderNo(),
+                first.getOverseasWarehouseId(), first.getOverseasWarehouseName(), first.getCreatedAt(), packages, skuViews);
+        }
+    }
+    private static final class CandidateSkuAccumulator {
+        private final String skuCode;
+        private final String productName;
+        private long packages;
+        private CandidateSkuAccumulator(String skuCode, String productName) { this.skuCode = skuCode; this.productName = productName; }
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/DispatchMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.dispatch;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.dispatch.mapper")
+public class DispatchMapperConfiguration {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/controller/DispatchController.java

@@ -0,0 +1,134 @@
+package com.baiyue.lastleg.dispatch.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.dispatch.dto.DispatchRequests;
+import com.baiyue.lastleg.dispatch.dto.DispatchResponse;
+import com.baiyue.lastleg.dispatch.model.DispatchPalletCandidate;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaRequests;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaResponses;
+import com.baiyue.lastleg.dispatch.pda.service.DispatchPdaWorkflowService;
+import com.baiyue.lastleg.dispatch.pda.controller.DispatchPdaController;
+import com.baiyue.lastleg.dispatch.service.DispatchService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg/dispatches")
+@Tag(name = "Tail-leg vehicle dispatch")
+public class DispatchController {
+    @Resource private DispatchService service;
+    @Resource private DispatchPdaWorkflowService pdaWorkflow;
+
+    @GetMapping("/candidates")
+    @Operation(summary = "List unlocked planned or received pallets for intelligent pre-dispatch")
+    public ApiResponse<List<DispatchPalletCandidate>> candidates(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @RequestParam(required = false) String orderNo,
+        @RequestParam(required = false) String fbaWarehouseCode,
+        @RequestParam(required = false) String sourceStage) {
+        return ApiResponse.success(service.candidates(scope(user, customerId), orderNo, fbaWarehouseCode, sourceStage));
+    }
+
+    @PostMapping("/pre-arrange")
+    @Operation(summary = "Create a pending-departure dispatch and lock all selected pallets")
+    public ApiResponse<DispatchResponse> preArrange(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @Valid @RequestBody DispatchRequests.PreArrange request) {
+        String scopedTenant = scope(user, customerId);
+        String operatorId = user.userId() == null ? user.username() : String.valueOf(user.userId());
+        return ApiResponse.success(service.preArrange(scopedTenant, operatorId, request));
+    }
+
+    @GetMapping
+    @Operation(summary = "Page dispatch orders")
+    public ApiResponse<PageResult<DispatchResponse>> page(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @Valid DispatchRequests.Query query) {
+        return ApiResponse.success(service.page(scope(user, customerId), query));
+    }
+
+    @GetMapping("/{dispatchNo}")
+    @Operation(summary = "Get dispatch details and all pallet destinations")
+    public ApiResponse<DispatchResponse> detail(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @PathVariable String dispatchNo) {
+        return ApiResponse.success(service.detail(scope(user, customerId), dispatchNo));
+    }
+
+    @PutMapping("/{dispatchNo}")
+    @Operation(summary = "Edit vehicle, driver, appointment, route and departure data")
+    public ApiResponse<DispatchResponse> update(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @PathVariable String dispatchNo,
+        @Valid @RequestBody DispatchRequests.Update request) {
+        return ApiResponse.success(service.update(scope(user, customerId), dispatchNo, request));
+    }
+
+    @DeleteMapping("/{dispatchNo}")
+    @Operation(summary = "Cancel a pending dispatch and release its pallet locks")
+    public ApiResponse<Void> cancel(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @PathVariable String dispatchNo) {
+        service.cancel(scope(user, customerId), dispatchNo);
+        return ApiResponse.success(null);
+    }
+
+    @PostMapping("/{dispatchNo}/depart")
+    @Operation(summary = "Ship all PDA-picked pallets and mark the dispatch departed")
+    public ApiResponse<DispatchPdaResponses.Departed> depart(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String customerId,
+        @PathVariable String dispatchNo,
+        @Valid @RequestBody DispatchPdaRequests.Depart request) {
+        requirePdaOperate(user);
+        String scopedTenant = scope(user, customerId);
+        String operatorId = user.userId() == null ? user.username() : String.valueOf(user.userId());
+        return ApiResponse.success(pdaWorkflow.depart(scopedTenant, dispatchNo, operatorId, request));
+    }
+
+    private String scope(AuthenticatedUser user, String requestedCustomer) {
+        if (user == null || user.tenantId() == null) {
+            throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        }
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedCustomer == null || requestedCustomer.isBlank() || "0".equals(requestedCustomer)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                    "Platform request must specify target tenant");
+            }
+            return requestedCustomer;
+        }
+        return String.valueOf(user.tenantId());
+    }
+
+    private void requirePdaOperate(AuthenticatedUser user) {
+        if (user == null || user.tenantId() == null) throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        if (user.permissions() == null || !user.permissions().contains(DispatchPdaController.OPERATE_PERMISSION)) {
+            throw new ResponseStatusException(HttpStatus.FORBIDDEN,
+                DispatchPdaController.OPERATE_PERMISSION + " permission is required");
+        }
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/dto/DispatchRequests.java

@@ -0,0 +1,35 @@
+package com.baiyue.lastleg.dispatch.dto;
+
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public final class DispatchRequests {
+    private DispatchRequests() {
+    }
+
+    public record Query(@Min(1) long page, @Min(1) @Max(200) long size, String dispatchNo,
+                        String vehiclePlate, String status, String fbaAppointmentNo) {
+        public Query { if (page == 0) page = 1; if (size == 0) size = 20; }
+    }
+
+    public record PreArrange(@NotEmpty @Size(max = 500) List<@NotNull Long> planPalletIds,
+                             @Size(max = 255) String route, @Size(max = 64) String fbaAppointmentNo,
+                             @Size(max = 32) String fbaAppointmentStatus,
+                             @Size(max = 32) String vehicleAppointmentStatus) {
+    }
+
+    public record Update(@Size(max = 64) String vehiclePlate, @Size(max = 128) String driverName,
+                         @Size(max = 64) String driverPhone, @Size(max = 255) String carrierName,
+                         @Size(max = 255) String route, LocalDateTime departAt,
+                         @Size(max = 64) String fbaAppointmentNo,
+                         @Size(max = 32) String fbaAppointmentStatus,
+                         @Size(max = 32) String vehicleAppointmentStatus,
+                         LocalDateTime estimatedArrivalAt, @Size(max = 32) String status) {
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/dto/DispatchResponse.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.dispatch.dto;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record DispatchResponse(Long id, String dispatchNo, String vehiclePlate, String driverName,
+                               String driverPhone, String carrierName, String orderNos, String route,
+                               String overseasWarehouseId, String overseasWarehouseName, LocalDateTime departAt,
+                               String fbaAppointmentNo, String fbaAppointmentStatus,
+                               String vehicleAppointmentStatus, LocalDateTime estimatedArrivalAt, String status,
+                               int itemCount, int palletCount, int packageCount, int pickedPackageCount,
+                               int shippedPackageCount, int remainingPackageCount, String partialCompletionReason,
+                               LocalDateTime createdAt,
+                               List<Item> items) {
+    public record Item(Long id, Long planPalletId, Long warehousePalletId, String palletNo,
+                       String overseasWarehouseId, String overseasWarehouseName,
+                       String orderNo, String orderRefs, String inboundCode, String destinationWarehouseCode,
+                       String destinationWarehouseName, String fbaWarehouseCode, int packageCount,
+                       BigDecimal volumeCbm, String sourceStage) {
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/entity/DispatchItem.java

@@ -0,0 +1,38 @@
+package com.baiyue.lastleg.dispatch.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/** Immutable pallet/cargo snapshot selected into a dispatch order. */
+@Data
+@TableName("ll_dispatch_item")
+public class DispatchItem {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long dispatchOrderId;
+    private String customerId;
+    private Long planId;
+    private Long planPalletId;
+    private Long warehousePalletId;
+    private Long orderId;
+    private String overseasWarehouseId;
+    private String overseasWarehouseName;
+    private String orderNo;
+    private String orderRefs;
+    private String inboundCode;
+    private String palletNo;
+    private String destinationWarehouseId;
+    private String destinationWarehouseCode;
+    private String destinationWarehouseName;
+    private String fbaWarehouseCode;
+    private Integer packageCount;
+    private BigDecimal volumeCbm;
+    /** PLAN for planned pallets; RECEIVED for warehouse/entity pallets. */
+    private String sourceStage;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/entity/DispatchOrder.java

@@ -0,0 +1,40 @@
+package com.baiyue.lastleg.dispatch.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Header for a pre-dispatched vehicle load. Vehicle information remains editable before departure. */
+@Data
+@TableName("ll_dispatch_order")
+public class DispatchOrder {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private String customerId;
+    private String dispatchNo;
+    private String overseasWarehouseId;
+    private String overseasWarehouseName;
+    private String vehiclePlate;
+    private String driverName;
+    private String driverPhone;
+    private String carrierName;
+    private String route;
+    private LocalDateTime departAt;
+    private String fbaAppointmentNo;
+    private String fbaAppointmentStatus;
+    private String vehicleAppointmentStatus;
+    private LocalDateTime estimatedArrivalAt;
+    private String status;
+    private Integer itemCount;
+    private Integer palletCount;
+    private Integer packageCount;
+    private Integer pickedPackageCount;
+    private Integer shippedPackageCount;
+    private String partialCompletionReason;
+    private String createdBy;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/entity/DispatchPalletLock.java

@@ -0,0 +1,29 @@
+package com.baiyue.lastleg.dispatch.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Prevents a source pallet from being added to more than one active dispatch order. */
+@Data
+@TableName("ll_dispatch_pallet_lock")
+public class DispatchPalletLock {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private String customerId;
+    private String sourcePalletKey;
+    /** Equals sourcePalletKey while ACTIVE and is null after release; unique index enforces exclusivity. */
+    private String activeKey;
+    private Long planId;
+    private Long planPalletId;
+    private Long warehousePalletId;
+    private Long dispatchOrderId;
+    private String status;
+    private LocalDateTime lockedAt;
+    private LocalDateTime releasedAt;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchCandidateMapper.java

@@ -0,0 +1,78 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baiyue.lastleg.dispatch.model.DispatchPalletCandidate;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface DispatchCandidateMapper {
+    @Select("<script>" +
+        "SELECT p.plan_id AS planId,p.id AS planPalletId,p.warehouse_pallet_id AS warehousePalletId," +
+        "MIN(l.order_id) AS orderId,MIN(o.overseas_warehouse_id) AS overseasWarehouseId,MIN(o.overseas_warehouse_name) AS overseasWarehouseName,MIN(o.order_no) AS orderNo," +
+        "GROUP_CONCAT(DISTINCT o.order_no ORDER BY o.order_no SEPARATOR ',') AS orderRefs,MIN(l.inbound_code) AS inboundCode," +
+        "p.pallet_no AS palletNo,p.destination_warehouse_id AS destinationWarehouseId," +
+        "p.destination_warehouse_code AS destinationWarehouseCode,p.destination_warehouse_name AS destinationWarehouseName," +
+        "MIN(l.fba_warehouse_code) AS fbaWarehouseCode," +
+        "CASE WHEN p.warehouse_pallet_id IS NOT NULL THEN COALESCE((SELECT SUM(pos.available_packages) " +
+        "FROM ll_inventory_position pos WHERE pos.customer_id=#{customerId} AND pos.pallet_id=p.warehouse_pallet_id),0) " +
+        "ELSE COALESCE(SUM(CASE WHEN a.picked_package_count &gt; 0 THEN a.picked_package_count " +
+        "ELSE a.planned_package_count END),0) END AS packageCount,p.allocated_volume_cbm AS volumeCbm," +
+        "CASE WHEN p.warehouse_pallet_id IS NULL THEN 'PLAN' ELSE 'RECEIVED' END AS sourceStage " +
+        "FROM ll_inbound_plan_pallet p JOIN ll_inbound_plan ip ON ip.id=p.plan_id " +
+        "LEFT JOIN ll_inbound_plan_pallet_allocation a ON a.pallet_id=p.id " +
+        "LEFT JOIN ll_inbound_plan_line l ON l.id=a.line_id " +
+        "LEFT JOIN ll_order o ON o.id=l.order_id " +
+        "WHERE ip.customer_id=#{customerId} " +
+        "<if test='orderNo != null and orderNo != \"\"'> AND o.order_no LIKE CONCAT('%',#{orderNo},'%')</if> " +
+        "<if test='fbaWarehouseCode != null and fbaWarehouseCode != \"\"'> AND l.fba_warehouse_code=#{fbaWarehouseCode}</if> " +
+        "<if test='sourceStage != null and sourceStage != \"\"'> AND " +
+        "CASE WHEN p.warehouse_pallet_id IS NULL THEN 'PLAN' ELSE 'RECEIVED' END=#{sourceStage}</if> " +
+        "AND (p.warehouse_pallet_id IS NULL OR EXISTS (SELECT 1 FROM ll_inventory_position pos " +
+        "WHERE pos.customer_id=#{customerId} AND pos.pallet_id=p.warehouse_pallet_id AND pos.available_packages &gt; 0)) " +
+        "AND NOT EXISTS (SELECT 1 FROM ll_dispatch_pallet_lock d " +
+        "WHERE d.customer_id=ip.customer_id AND d.status='ACTIVE' AND (" +
+        "d.source_pallet_key=CONCAT('PLAN:',p.id) OR (p.warehouse_pallet_id IS NOT NULL AND " +
+        "d.source_pallet_key=CONCAT('RECEIVED:',p.warehouse_pallet_id)))) " +
+        "AND NOT EXISTS (SELECT 1 FROM ll_warehouse_transfer_inventory_allocation ta " +
+        "JOIN ll_inventory_position tp ON tp.id=ta.inventory_position_id " +
+        "WHERE ta.customer_id=#{customerId} AND ta.status='RESERVED' AND tp.pallet_id=p.warehouse_pallet_id) " +
+        "GROUP BY p.plan_id,p.id,p.warehouse_pallet_id,p.pallet_no,p.destination_warehouse_id," +
+        "p.destination_warehouse_code,p.destination_warehouse_name,p.allocated_volume_cbm " +
+        "ORDER BY p.plan_id,p.sequence_no" +
+        "</script>")
+    List<DispatchPalletCandidate> available(@Param("customerId") String customerId,
+                                            @Param("orderNo") String orderNo,
+                                            @Param("fbaWarehouseCode") String fbaWarehouseCode,
+                                            @Param("sourceStage") String sourceStage);
+
+    @Select("<script>" +
+        "SELECT p.plan_id AS planId,p.id AS planPalletId,p.warehouse_pallet_id AS warehousePalletId," +
+        "MIN(l.order_id) AS orderId,MIN(o.overseas_warehouse_id) AS overseasWarehouseId,MIN(o.overseas_warehouse_name) AS overseasWarehouseName,MIN(o.order_no) AS orderNo," +
+        "GROUP_CONCAT(DISTINCT o.order_no ORDER BY o.order_no SEPARATOR ',') AS orderRefs,MIN(l.inbound_code) AS inboundCode," +
+        "p.pallet_no AS palletNo,p.destination_warehouse_id AS destinationWarehouseId," +
+        "p.destination_warehouse_code AS destinationWarehouseCode,p.destination_warehouse_name AS destinationWarehouseName," +
+        "MIN(l.fba_warehouse_code) AS fbaWarehouseCode," +
+        "CASE WHEN p.warehouse_pallet_id IS NOT NULL THEN COALESCE((SELECT SUM(pos.available_packages) " +
+        "FROM ll_inventory_position pos WHERE pos.customer_id=#{customerId} AND pos.pallet_id=p.warehouse_pallet_id),0) " +
+        "ELSE COALESCE(SUM(CASE WHEN a.picked_package_count &gt; 0 THEN a.picked_package_count " +
+        "ELSE a.planned_package_count END),0) END AS packageCount,p.allocated_volume_cbm AS volumeCbm," +
+        "CASE WHEN p.warehouse_pallet_id IS NULL THEN 'PLAN' ELSE 'RECEIVED' END AS sourceStage " +
+        "FROM ll_inbound_plan_pallet p JOIN ll_inbound_plan ip ON ip.id=p.plan_id " +
+        "LEFT JOIN ll_inbound_plan_pallet_allocation a ON a.pallet_id=p.id " +
+        "LEFT JOIN ll_inbound_plan_line l ON l.id=a.line_id " +
+        "LEFT JOIN ll_order o ON o.id=l.order_id " +
+        "WHERE ip.customer_id=#{customerId} AND p.id IN " +
+        "<foreach collection='planPalletIds' item='id' open='(' separator=',' close=')'>#{id}</foreach> " +
+        "AND NOT EXISTS (SELECT 1 FROM ll_warehouse_transfer_inventory_allocation ta " +
+        "JOIN ll_inventory_position tp ON tp.id=ta.inventory_position_id " +
+        "WHERE ta.customer_id=#{customerId} AND ta.status='RESERVED' AND tp.pallet_id=p.warehouse_pallet_id) " +
+        "GROUP BY p.plan_id,p.id,p.warehouse_pallet_id,p.pallet_no,p.destination_warehouse_id," +
+        "p.destination_warehouse_code,p.destination_warehouse_name,p.allocated_volume_cbm " +
+        "ORDER BY p.id FOR UPDATE" +
+        "</script>")
+    List<DispatchPalletCandidate> lockSelected(@Param("customerId") String customerId,
+                                                @Param("planPalletIds") List<Long> planPalletIds);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchItemMapper.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+import java.util.List;
+
+@Mapper
+public interface DispatchItemMapper extends BaseMapper<DispatchItem> {
+    @Select("SELECT * FROM ll_dispatch_item WHERE customer_id=#{customerId} AND dispatch_order_id=#{dispatchOrderId} ORDER BY id")
+    List<DispatchItem> findByDispatchOrder(@Param("customerId") String customerId,
+                                           @Param("dispatchOrderId") Long dispatchOrderId);
+
+    @Update("UPDATE ll_dispatch_item i JOIN ll_inbound_plan_pallet p ON p.id=i.plan_pallet_id " +
+        "JOIN ll_inbound_plan ip ON ip.id=p.plan_id AND ip.customer_id=i.customer_id " +
+        "SET i.warehouse_pallet_id=p.warehouse_pallet_id,i.source_stage='RECEIVED' " +
+        "WHERE i.customer_id=#{customerId} AND i.dispatch_order_id=#{dispatchOrderId} " +
+        "AND i.warehouse_pallet_id IS NULL AND p.warehouse_pallet_id IS NOT NULL")
+    int bindReceivedPallets(@Param("customerId") String customerId,
+                            @Param("dispatchOrderId") Long dispatchOrderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchOrderMapper.java

@@ -0,0 +1,16 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface DispatchOrderMapper extends BaseMapper<DispatchOrder> {
+    @Select("SELECT * FROM ll_dispatch_order WHERE customer_id=#{customerId} AND dispatch_no=#{dispatchNo} LIMIT 1")
+    DispatchOrder findByDispatchNo(@Param("customerId") String customerId, @Param("dispatchNo") String dispatchNo);
+
+    @Select("SELECT * FROM ll_dispatch_order WHERE customer_id=#{customerId} AND id=#{id} LIMIT 1 FOR UPDATE")
+    DispatchOrder lockById(@Param("customerId") String customerId, @Param("id") Long id);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchPalletLockMapper.java

@@ -0,0 +1,15 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchPalletLock;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface DispatchPalletLockMapper extends BaseMapper<DispatchPalletLock> {
+    @Select("SELECT * FROM ll_dispatch_pallet_lock WHERE customer_id=#{customerId} AND source_pallet_key=#{sourcePalletKey} " +
+        "AND status='ACTIVE' LIMIT 1 FOR UPDATE")
+    DispatchPalletLock lockActive(@Param("customerId") String customerId,
+                                  @Param("sourcePalletKey") String sourcePalletKey);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/model/DispatchPalletCandidate.java

@@ -0,0 +1,37 @@
+package com.baiyue.lastleg.dispatch.model;
+
+import java.math.BigDecimal;
+
+public record DispatchPalletCandidate(
+    Long planId,
+    Long planPalletId,
+    Long warehousePalletId,
+    Long orderId,
+    String overseasWarehouseId,
+    String overseasWarehouseName,
+    String orderNo,
+    String orderRefs,
+    String inboundCode,
+    String palletNo,
+    String destinationWarehouseId,
+    String destinationWarehouseCode,
+    String destinationWarehouseName,
+    String fbaWarehouseCode,
+    Integer packageCount,
+    BigDecimal volumeCbm,
+    String sourceStage
+) {
+    public DispatchPalletCandidate(Long planId, Long planPalletId, Long warehousePalletId, Long orderId,
+                                   String orderNo, String orderRefs, String inboundCode, String palletNo,
+                                   String destinationWarehouseId, String destinationWarehouseCode,
+                                   String destinationWarehouseName, String fbaWarehouseCode, Integer packageCount,
+                                   BigDecimal volumeCbm, String sourceStage) {
+        this(planId, planPalletId, warehousePalletId, orderId, null, null, orderNo, orderRefs, inboundCode,
+            palletNo, destinationWarehouseId, destinationWarehouseCode, destinationWarehouseName,
+            fbaWarehouseCode, packageCount, volumeCbm, sourceStage);
+    }
+    public String sourcePalletKey() {
+        // A plan pallet keeps the same lock identity before and after the physical pallet is received.
+        return planPalletId != null ? "PLAN:" + planPalletId : "RECEIVED:" + warehousePalletId;
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/DispatchPdaMapperConfiguration.java

@@ -0,0 +1,8 @@
+package com.baiyue.lastleg.dispatch.pda;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.dispatch.pda.mapper")
+public class DispatchPdaMapperConfiguration {}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/controller/DispatchPdaController.java

@@ -0,0 +1,69 @@
+package com.baiyue.lastleg.dispatch.pda.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaRequests;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaResponses;
+import com.baiyue.lastleg.dispatch.pda.service.DispatchPdaWorkflowService;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.server.ResponseStatusException;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg/dispatches/{dispatchNo}/pda")
+public class DispatchPdaController {
+    public static final String OPERATE_PERMISSION = "lastleg:pda:operate";
+    @Resource private DispatchPdaWorkflowService service;
+
+    @PostMapping("/push")
+    public ApiResponse<DispatchPdaResponses.Task> push(@AuthenticationPrincipal AuthenticatedUser user,
+                                                       @PathVariable String dispatchNo,
+                                                       @RequestParam(required = false) String customerId,
+                                                       @Valid @RequestBody DispatchPdaRequests.Push request) {
+        requireOperate(user);
+        return ApiResponse.success(service.push(scope(user, customerId), dispatchNo, request));
+    }
+    @GetMapping
+    public ApiResponse<DispatchPdaResponses.Task> task(@AuthenticationPrincipal AuthenticatedUser user,
+                                                       @PathVariable String dispatchNo,
+                                                       @RequestParam(required = false) String customerId) {
+        return ApiResponse.success(service.task(scope(user, customerId), dispatchNo));
+    }
+    @PostMapping("/items/{itemId}/pick")
+    public ApiResponse<DispatchPdaResponses.Picked> pick(@AuthenticationPrincipal AuthenticatedUser user,
+                                                          @PathVariable String dispatchNo, @PathVariable long itemId,
+                                                          @RequestParam(required = false) String customerId,
+                                                          @Valid @RequestBody DispatchPdaRequests.Pick request) {
+        requireOperate(user);
+        return ApiResponse.success(service.pick(scope(user, customerId), dispatchNo, itemId, operator(user), request));
+    }
+    @PostMapping("/complete")
+    public ApiResponse<DispatchPdaResponses.PickingCompleted> completePicking(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @PathVariable String dispatchNo,
+        @RequestParam(required = false) String customerId,
+        @Valid @RequestBody DispatchPdaRequests.CompletePicking request) {
+        requireOperate(user);
+        return ApiResponse.success(service.completePicking(scope(user, customerId), dispatchNo, request));
+    }
+    private String scope(AuthenticatedUser user, String requestedCustomer) {
+        if (user == null || user.tenantId() == null) throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedCustomer == null || requestedCustomer.isBlank() || "0".equals(requestedCustomer)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Platform request must specify target tenant");
+            }
+            return requestedCustomer.trim();
+        }
+        return String.valueOf(user.tenantId());
+    }
+    private String operator(AuthenticatedUser user) { return user.userId() == null ? user.username() : String.valueOf(user.userId()); }
+    private void requireOperate(AuthenticatedUser user) {
+        if (user == null || user.tenantId() == null) throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        if (user.permissions() == null || !user.permissions().contains(OPERATE_PERMISSION)) {
+            throw new ResponseStatusException(HttpStatus.FORBIDDEN, OPERATE_PERMISSION + " permission is required");
+        }
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/dto/DispatchPdaRequests.java

@@ -0,0 +1,26 @@
+package com.baiyue.lastleg.dispatch.pda.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Positive;
+import jakarta.validation.constraints.PositiveOrZero;
+import jakarta.validation.constraints.Size;
+
+public final class DispatchPdaRequests {
+    private DispatchPdaRequests() {}
+    public record Push(@NotBlank String idempotencyKey, String operatorId, String operatorName,
+                       String warehouseId) {
+        public Push(String idempotencyKey, String operatorId, String operatorName) {
+            this(idempotencyKey, operatorId, operatorName, null);
+        }
+    }
+    public record Pick(@NotNull Long positionId, @Positive long packages, @PositiveOrZero long productQuantity,
+                       @NotBlank String idempotencyKey, String remark, String warehouseId) {
+        public Pick(Long positionId, long packages, long productQuantity, String idempotencyKey, String remark) {
+            this(positionId, packages, productQuantity, idempotencyKey, remark, null);
+        }
+    }
+    public record Depart(@NotBlank String idempotencyKey, String remark) {}
+    public record CompletePicking(@NotBlank String idempotencyKey,
+                                  @NotBlank @Size(max = 1000) String reason) {}
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/dto/DispatchPdaResponses.java

@@ -0,0 +1,27 @@
+package com.baiyue.lastleg.dispatch.pda.dto;
+
+import java.util.List;
+
+public final class DispatchPdaResponses {
+    private DispatchPdaResponses() {}
+    public record Task(Long id, String taskNo, String dispatchNo, String vehiclePlate, String warehouseId, String status,
+                       List<Item> items) {}
+    public record Item(Long dispatchItemId, String palletNo, String destinationWarehouseCode,
+                       String destinationWarehouseName, String fbaWarehouseCode, int scheduledPackages,
+                       long pickedPackages, List<Position> positions) {}
+    public record Position(Long id, Long balanceId, long availablePackages, long allocatedPackages,
+                           long pickedPackages) {}
+    public record Picked(Long dispatchItemId, Long positionId, long packages, long pickedPackages,
+                         boolean palletScrapped, boolean replayed) {}
+    public record Departed(String dispatchNo, String status, long shippedPackages, boolean replayed) {
+        public Departed withReplay() { return new Departed(dispatchNo, status, shippedPackages, true); }
+    }
+    public record PickingCompleted(String dispatchNo, String status, long plannedPackages,
+                                   long pickedPackages, long remainingPackages, boolean partial,
+                                   boolean replayed) {
+        public PickingCompleted withReplay() {
+            return new PickingCompleted(dispatchNo, status, plannedPackages, pickedPackages,
+                remainingPackages, partial, true);
+        }
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/entity/DispatchPdaOperation.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.dispatch.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_dispatch_pda_operation")
+public class DispatchPdaOperation {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String customerId;
+    private Long taskId;
+    private String operationType;
+    private String idempotencyKey;
+    private String requestHash;
+    private String resultJson;
+    private String status;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/entity/DispatchPdaPick.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.dispatch.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_dispatch_pda_pick")
+public class DispatchPdaPick {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String customerId;
+    private Long taskId;
+    private Long dispatchItemId;
+    private Long inventoryPositionId;
+    private Long packages;
+    private Long productQuantity;
+    private String idempotencyKey;
+    private LocalDateTime pickedAt;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/entity/DispatchPdaPickOrder.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.dispatch.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Immutable FIFO attribution of a PDA pick to its inbound receipt and tail-leg order. */
+@Data
+@TableName("ll_dispatch_pda_pick_order")
+public class DispatchPdaPickOrder {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String customerId;
+    private Long pickId;
+    private Long receiptId;
+    private Long orderId;
+    private Long packages;
+    private Long productQuantity;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/entity/DispatchPdaTask.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.dispatch.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_dispatch_pda_task")
+public class DispatchPdaTask {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String customerId;
+    private Long dispatchOrderId;
+    private String taskNo;
+    private String status;
+    private String operatorId;
+    private String operatorName;
+    private String warehouseId;
+    private LocalDateTime pushedAt;
+    private LocalDateTime completedAt;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/mapper/DispatchPdaOperationMapper.java

@@ -0,0 +1,11 @@
+package com.baiyue.lastleg.dispatch.pda.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaOperation;
+import org.apache.ibatis.annotations.*;
+
+@Mapper
+public interface DispatchPdaOperationMapper extends BaseMapper<DispatchPdaOperation> {
+    @Select("SELECT * FROM ll_dispatch_pda_operation WHERE customer_id=#{customerId} AND idempotency_key=#{key} LIMIT 1")
+    DispatchPdaOperation findKey(@Param("customerId") String customerId, @Param("key") String key);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/mapper/DispatchPdaPickMapper.java

@@ -0,0 +1,14 @@
+package com.baiyue.lastleg.dispatch.pda.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaPick;
+import org.apache.ibatis.annotations.*;
+import java.util.List;
+
+@Mapper
+public interface DispatchPdaPickMapper extends BaseMapper<DispatchPdaPick> {
+    @Select("SELECT * FROM ll_dispatch_pda_pick WHERE customer_id=#{customerId} AND task_id=#{taskId} ORDER BY id")
+    List<DispatchPdaPick> listTask(@Param("customerId") String customerId, @Param("taskId") Long taskId);
+    @Select("SELECT COALESCE(SUM(packages),0) FROM ll_dispatch_pda_pick WHERE customer_id=#{customerId} AND task_id=#{taskId} AND dispatch_item_id=#{itemId}")
+    long totalItem(@Param("customerId") String customerId, @Param("taskId") Long taskId, @Param("itemId") Long itemId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/mapper/DispatchPdaPickOrderMapper.java

@@ -0,0 +1,31 @@
+package com.baiyue.lastleg.dispatch.pda.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaPickOrder;
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundStockReceipt;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface DispatchPdaPickOrderMapper extends BaseMapper<DispatchPdaPickOrder> {
+    @Select("SELECT r.* FROM ll_inbound_stock_receipt r " +
+        "WHERE r.customer_id=#{customerId} AND r.inventory_position_id=#{positionId} " +
+        "AND r.received_packages > (SELECT COALESCE(SUM(a.packages),0) FROM ll_dispatch_pda_pick_order a " +
+        "WHERE a.customer_id=r.customer_id AND a.receipt_id=r.id) ORDER BY r.received_at,r.id")
+    List<InboundStockReceipt> availableReceipts(@Param("customerId") String customerId,
+                                                @Param("positionId") Long positionId);
+
+    @Select("SELECT COALESCE(SUM(packages),0) FROM ll_dispatch_pda_pick_order " +
+        "WHERE customer_id=#{customerId} AND receipt_id=#{receiptId}")
+    long attributedPackages(@Param("customerId") String customerId, @Param("receiptId") Long receiptId);
+
+    @Select("SELECT COALESCE(SUM(product_quantity),0) FROM ll_dispatch_pda_pick_order " +
+        "WHERE customer_id=#{customerId} AND receipt_id=#{receiptId}")
+    long attributedQuantity(@Param("customerId") String customerId, @Param("receiptId") Long receiptId);
+
+    @Select("SELECT * FROM ll_dispatch_pda_pick_order WHERE customer_id=#{customerId} AND pick_id=#{pickId} ORDER BY id")
+    List<DispatchPdaPickOrder> listPick(@Param("customerId") String customerId, @Param("pickId") Long pickId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/mapper/DispatchPdaTaskMapper.java

@@ -0,0 +1,14 @@
+package com.baiyue.lastleg.dispatch.pda.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaTask;
+import org.apache.ibatis.annotations.*;
+
+@Mapper
+public interface DispatchPdaTaskMapper extends BaseMapper<DispatchPdaTask> {
+    @Select("SELECT * FROM ll_dispatch_pda_task WHERE customer_id=#{customerId} AND dispatch_order_id=#{dispatchOrderId} LIMIT 1 FOR UPDATE")
+    DispatchPdaTask lockByDispatch(@Param("customerId") String customerId, @Param("dispatchOrderId") Long dispatchOrderId);
+
+    @Select("SELECT * FROM ll_dispatch_pda_task WHERE customer_id=#{customerId} AND dispatch_order_id=#{dispatchOrderId} LIMIT 1")
+    DispatchPdaTask findByDispatch(@Param("customerId") String customerId, @Param("dispatchOrderId") Long dispatchOrderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/service/DispatchPdaWorkflowService.java

@@ -0,0 +1,277 @@
+package com.baiyue.lastleg.dispatch.pda.service;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.delivery.entity.OutboundOrder;
+import com.baiyue.lastleg.delivery.mapper.OutboundOrderMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import com.baiyue.lastleg.dispatch.entity.DispatchPalletLock;
+import com.baiyue.lastleg.dispatch.mapper.DispatchItemMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchOrderMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchPalletLockMapper;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaRequests;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaResponses;
+import com.baiyue.lastleg.dispatch.pda.entity.*;
+import com.baiyue.lastleg.dispatch.pda.mapper.*;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandRequests;
+import com.baiyue.lastleg.inventory.command.service.InventoryCommandService;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baiyue.lastleg.inventory.mapper.InventoryPositionMapper;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.time.LocalDateTime;
+import java.util.*;
+import java.util.stream.Collectors;
+
+@Service
+public class DispatchPdaWorkflowService {
+    @Resource private DispatchOrderMapper orders;
+    @Resource private OutboundOrderMapper outboundOrders;
+    @Resource private DispatchItemMapper items;
+    @Resource private DispatchPdaTaskMapper tasks;
+    @Resource private DispatchPdaPickMapper picks;
+    @Resource private DispatchPdaOperationMapper operations;
+    @Resource private DispatchPalletLockMapper palletLocks;
+    @Resource private InventoryPositionMapper positions;
+    @Resource private InventoryCommandService inventory;
+    @Resource private DispatchPickOrderAttributionService pickAttribution;
+    @Resource private ObjectMapper objectMapper;
+
+    @Transactional
+    public DispatchPdaResponses.Task push(String customerId, String dispatchNo, DispatchPdaRequests.Push request) {
+        DispatchOrder order = requireOrder(customerId, dispatchNo);
+        requirePdaStatus(order);
+        requireVehicle(order);
+        String warehouseId = warehouse(request.warehouseId());
+        requireDispatchWarehouse(order, warehouseId);
+        DispatchPdaOperation replay = replay(customerId, "PUSH", request.idempotencyKey(), request);
+        if (replay != null) return read(replay, DispatchPdaResponses.Task.class);
+        items.bindReceivedPallets(customerId, order.getId());
+        List<DispatchItem> dispatchItems = items.findByDispatchOrder(customerId, order.getId());
+        if (dispatchItems.isEmpty()) throw conflict("Dispatch has no pallets to push");
+        if (dispatchItems.stream().anyMatch(item -> item.getWarehousePalletId() == null)) {
+            throw conflict("All pre-arranged pallets must be received before PDA push");
+        }
+        DispatchPdaTask task = tasks.lockByDispatch(customerId, order.getId());
+        LocalDateTime now = LocalDateTime.now();
+        if (task == null) {
+            task = new DispatchPdaTask();
+            task.setId(IdWorker.getId()); task.setCustomerId(customerId); task.setDispatchOrderId(order.getId());
+            task.setTaskNo("DPDA" + task.getId()); task.setStatus("PDA_PENDING");
+            task.setWarehouseId(warehouseId);
+            task.setOperatorId(trim(request.operatorId())); task.setOperatorName(trim(request.operatorName()));
+            task.setPushedAt(now); task.setCreatedAt(now); task.setUpdatedAt(now); tasks.insert(task);
+        }
+        if ("PENDING_DEPARTURE".equals(order.getStatus())) { order.setStatus("PICKING"); order.setUpdatedAt(now); orders.updateById(order); }
+        if (!warehouseId.equals(task.getWarehouseId())) throw conflict("PDA task warehouse does not match selected warehouse");
+        DispatchPdaResponses.Task result = task(customerId, order, task, dispatchItems);
+        save(customerId, task.getId(), "PUSH", request.idempotencyKey(), request, result);
+        return result;
+    }
+
+    @Transactional(readOnly = true)
+    public DispatchPdaResponses.Task task(String customerId, String dispatchNo) {
+        DispatchOrder order = requireOrder(customerId, dispatchNo);
+        DispatchPdaTask task = tasks.findByDispatch(customerId, order.getId());
+        if (task == null) throw notFound("Dispatch PDA task not found");
+        return task(customerId, order, task, items.findByDispatchOrder(customerId, order.getId()));
+    }
+
+    @Transactional
+    public DispatchPdaResponses.Picked pick(String customerId, String dispatchNo, long itemId,
+                                             String operatorId, DispatchPdaRequests.Pick request) {
+        DispatchOrder order = requireOrder(customerId, dispatchNo);
+        requirePdaStatus(order);
+        requireVehicle(order);
+        String warehouseId = warehouse(request.warehouseId());
+        requireDispatchWarehouse(order, warehouseId);
+        DispatchPdaTask task = tasks.lockByDispatch(customerId, order.getId());
+        if (task == null || !("PDA_PENDING".equals(task.getStatus()) || "PICKING".equals(task.getStatus()))) {
+            throw conflict("Dispatch PDA task is not available for picking");
+        }
+        if (!warehouseId.equals(task.getWarehouseId())) throw conflict("PDA pick warehouse does not match task warehouse");
+        DispatchItem item = items.selectById(itemId);
+        if (item == null || !customerId.equals(item.getCustomerId()) || !order.getId().equals(item.getDispatchOrderId())) {
+            throw notFound("Dispatch pallet item not found");
+        }
+        if (!warehouseId.equals(item.getOverseasWarehouseId())) throw conflict("Pallet does not belong to selected warehouse");
+        DispatchPdaOperation replay = replay(customerId, "PICK", request.idempotencyKey(), request);
+        if (replay != null) return read(replay, DispatchPdaResponses.Picked.class);
+        InventoryPosition position = positions.selectById(request.positionId());
+        if (position == null || !customerId.equals(position.getCustomerId())
+            || item.getWarehousePalletId() == null || !item.getWarehousePalletId().equals(position.getPalletId())) {
+            throw conflict("Inventory position does not belong to this dispatch pallet");
+        }
+        long picked = picks.totalItem(customerId, task.getId(), itemId);
+        if (picked + request.packages() > item.getPackageCount()) throw conflict("Picked packages exceed dispatch pallet packages");
+        String keyBase = "DISPATCH:" + order.getDispatchNo() + ":" + itemId + ":" + request.idempotencyKey();
+        InventoryCommandRequests.Move move = new InventoryCommandRequests.Move(customerId, request.positionId(),
+            request.packages(), order.getDispatchNo(), order.getDispatchNo(), null,
+            keyBase + ":ALLOCATE", request.remark());
+        inventory.allocate(customerId, operatorId, move);
+        inventory.pick(customerId, operatorId, new InventoryCommandRequests.Move(customerId, request.positionId(),
+            request.packages(), order.getDispatchNo(), order.getDispatchNo(), null,
+            keyBase + ":PICK", request.remark()));
+        DispatchPdaPick pick = new DispatchPdaPick();
+        pick.setId(IdWorker.getId()); pick.setCustomerId(customerId); pick.setTaskId(task.getId());
+        pick.setDispatchItemId(itemId); pick.setInventoryPositionId(request.positionId()); pick.setPackages(request.packages());
+        pick.setProductQuantity(request.productQuantity()); pick.setIdempotencyKey(request.idempotencyKey());
+        pick.setPickedAt(LocalDateTime.now()); pick.setCreatedAt(pick.getPickedAt()); picks.insert(pick);
+        pickAttribution.attribute(customerId, pick);
+        long total = picked + request.packages();
+        order.setPickedPackageCount((int) (n(order.getPickedPackageCount()) + request.packages()));
+        task.setStatus("PICKING"); task.setUpdatedAt(LocalDateTime.now());
+        if (allPicked(customerId, task.getId(), items.findByDispatchOrder(customerId, order.getId()))) {
+            task.setStatus("COMPLETED"); task.setCompletedAt(LocalDateTime.now()); order.setStatus("READY_TO_DEPART");
+        }
+        order.setUpdatedAt(LocalDateTime.now());
+        orders.updateById(order);
+        tasks.updateById(task);
+        DispatchPdaResponses.Picked result = new DispatchPdaResponses.Picked(itemId, request.positionId(), request.packages(), total, false, false);
+        save(customerId, task.getId(), "PICK", request.idempotencyKey(), request, result);
+        return result;
+    }
+
+    @Transactional
+    public DispatchPdaResponses.PickingCompleted completePicking(String customerId, String dispatchNo,
+                                                                   DispatchPdaRequests.CompletePicking request) {
+        DispatchOrder found = requireOrder(customerId, dispatchNo);
+        DispatchOrder order = orders.lockById(customerId, found.getId());
+        if (order == null) throw notFound("Dispatch order not found");
+        DispatchPdaOperation replay = replay(customerId, "COMPLETE_PICKING", request.idempotencyKey(), request);
+        if (replay != null) return read(replay, DispatchPdaResponses.PickingCompleted.class).withReplay();
+        requireVehicle(order);
+        DispatchPdaTask task = tasks.lockByDispatch(customerId, order.getId());
+        if (task == null || !("PDA_PENDING".equals(task.getStatus()) || "PICKING".equals(task.getStatus()))) {
+            throw conflict("Dispatch PDA task is not available for completion");
+        }
+        List<DispatchItem> source = items.findByDispatchOrder(customerId, order.getId());
+        long planned = source.stream().map(DispatchItem::getPackageCount).filter(Objects::nonNull)
+            .mapToLong(Integer::longValue).sum();
+        long picked = picks.listTask(customerId, task.getId()).stream().mapToLong(p -> n(p.getPackages())).sum();
+        if (picked <= 0 || picked > planned) throw conflict("PDA completion requires a valid picked package count");
+        boolean partial = picked < planned;
+        LocalDateTime now = LocalDateTime.now();
+        task.setStatus("COMPLETED"); task.setCompletedAt(now); task.setUpdatedAt(now); tasks.updateById(task);
+        order.setStatus(partial ? "PARTIAL_READY_TO_DEPART" : "READY_TO_DEPART");
+        order.setPartialCompletionReason(partial ? request.reason().trim() : null);
+        order.setPickedPackageCount((int) picked);
+        order.setUpdatedAt(now); orders.updateById(order);
+        DispatchPdaResponses.PickingCompleted result = new DispatchPdaResponses.PickingCompleted(order.getDispatchNo(),
+            order.getStatus(), planned, picked, planned - picked, partial, false);
+        save(customerId, task.getId(), "COMPLETE_PICKING", request.idempotencyKey(), request, result);
+        return result;
+    }
+
+    /** Final warehouse exit: only fully PDA-picked dispatches can consume picked inventory. */
+    @Transactional
+    public DispatchPdaResponses.Departed depart(String customerId, String dispatchNo, String operatorId,
+                                                 DispatchPdaRequests.Depart request) {
+        DispatchOrder found = requireOrder(customerId, dispatchNo);
+        DispatchOrder order = orders.lockById(customerId, found.getId());
+        if (order == null) throw notFound("Dispatch order not found");
+        DispatchPdaOperation replay = replay(customerId, "DEPART", request.idempotencyKey(), request);
+        if (replay != null) return read(replay, DispatchPdaResponses.Departed.class).withReplay();
+        requireVehicle(order);
+        OutboundOrder outbound = outboundOrders.lockByDispatch(customerId, order.getId());
+        if (outbound == null || !"WAIT_OUTBOUND".equals(outbound.getStatus())) {
+            throw conflict("Dispatch must be transferred to a pending outbound order before departure");
+        }
+        DispatchPdaTask task = tasks.lockByDispatch(customerId, order.getId());
+        if (task == null || !"COMPLETED".equals(task.getStatus())
+            || !("READY_TO_DEPART".equals(order.getStatus()) || "PARTIAL_READY_TO_DEPART".equals(order.getStatus()))) {
+            throw conflict("Dispatch must complete PDA picking before departure");
+        }
+
+        List<DispatchItem> dispatchItems = items.findByDispatchOrder(customerId, order.getId());
+        boolean partial = "PARTIAL_READY_TO_DEPART".equals(order.getStatus());
+        if (!partial && !allPicked(customerId, task.getId(), dispatchItems)) {
+            throw conflict("Every dispatch pallet must be fully picked before departure");
+        }
+        List<DispatchPdaPick> dispatchPicks = picks.listTask(customerId, task.getId());
+        if (dispatchPicks.isEmpty()) throw conflict("Dispatch has no PDA picks to ship");
+        long shipped = 0;
+        for (DispatchPdaPick pick : dispatchPicks) {
+            String key = "DISPATCH:" + order.getDispatchNo() + ":PICK:" + pick.getId() + ":SHIP";
+            inventory.ship(customerId, operatorId, new InventoryCommandRequests.Move(customerId,
+                pick.getInventoryPositionId(), n(pick.getPackages()),
+                outbound.getOutboundNo(), outbound.getOutboundNo(), null, key, request.remark()));
+            shipped += n(pick.getPackages());
+        }
+        LocalDateTime now = LocalDateTime.now();
+        pickAttribution.depart(customerId, outbound.getOutboundNo(), order.getDispatchNo(), dispatchPicks, now);
+        outbound.setStatus("OUTBOUNDED");
+        outbound.setUpdatedAt(now);
+        outboundOrders.updateById(outbound);
+        order.setShippedPackageCount((int) shipped);
+        order.setStatus(partial ? "PARTIAL_DEPARTED" : "DEPARTED");
+        order.setUpdatedAt(now);
+        orders.updateById(order);
+        releasePalletLocks(customerId, order.getId(), now);
+        DispatchPdaResponses.Departed result = new DispatchPdaResponses.Departed(order.getDispatchNo(),
+            order.getStatus(), shipped, false);
+        save(customerId, task.getId(), "DEPART", request.idempotencyKey(), request, result);
+        return result;
+    }
+
+    private DispatchPdaResponses.Task task(String customerId, DispatchOrder order, DispatchPdaTask task, List<DispatchItem> source) {
+        List<DispatchPdaResponses.Item> values = new ArrayList<>();
+        for (DispatchItem item : source) {
+            List<InventoryPosition> palletPositions = item.getWarehousePalletId() == null ? List.of()
+                : positions.listPallet(customerId, item.getWarehousePalletId());
+            values.add(new DispatchPdaResponses.Item(item.getId(), item.getPalletNo(), item.getDestinationWarehouseCode(),
+                item.getDestinationWarehouseName(), item.getFbaWarehouseCode(), item.getPackageCount(),
+                picks.totalItem(customerId, task.getId(), item.getId()), palletPositions.stream().map(p ->
+                new DispatchPdaResponses.Position(p.getId(), p.getBalanceId(), n(p.getAvailablePackages()),
+                    n(p.getAllocatedPackages()), n(p.getPickedPackages()))).toList()));
+        }
+        return new DispatchPdaResponses.Task(task.getId(), task.getTaskNo(), order.getDispatchNo(), order.getVehiclePlate(), task.getWarehouseId(), task.getStatus(), values);
+    }
+
+    private boolean allPicked(String customerId, Long taskId, List<DispatchItem> source) {
+        return source.stream().allMatch(item -> picks.totalItem(customerId, taskId, item.getId()) == item.getPackageCount());
+    }
+    private void releasePalletLocks(String customerId, Long dispatchOrderId, LocalDateTime now) {
+        List<DispatchPalletLock> activeLocks = palletLocks.selectList(new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<DispatchPalletLock>()
+            .eq(DispatchPalletLock::getCustomerId, customerId)
+            .eq(DispatchPalletLock::getDispatchOrderId, dispatchOrderId)
+            .eq(DispatchPalletLock::getStatus, "ACTIVE"));
+        for (DispatchPalletLock lock : activeLocks) {
+            lock.setStatus("RELEASED");
+            lock.setActiveKey(null);
+            lock.setReleasedAt(now);
+            lock.setUpdatedAt(now);
+            palletLocks.updateById(lock);
+        }
+    }
+    private DispatchOrder requireOrder(String customerId, String dispatchNo) { DispatchOrder order = orders.findByDispatchNo(customerId, dispatchNo); if (order == null) throw notFound("Dispatch order not found"); return order; }
+    private void requirePdaStatus(DispatchOrder order) {
+        if (!("PENDING_DEPARTURE".equals(order.getStatus()) || "PICKING".equals(order.getStatus())
+            || "READY_TO_DEPART".equals(order.getStatus()))) throw conflict("Dispatch has already departed and cannot be changed by PDA");
+    }
+    private void requireVehicle(DispatchOrder order) { if (trim(order.getVehiclePlate()) == null) throw conflict("Vehicle plate is required before PDA push or picking"); }
+    private static String warehouse(String value) { return required(value, "Warehouse selection is required for PDA work"); }
+    private static void requireDispatchWarehouse(DispatchOrder order, String warehouseId) {
+        if (trim(order.getOverseasWarehouseId()) == null || !warehouseId.equals(order.getOverseasWarehouseId().trim())) {
+            throw conflict("Selected warehouse does not match dispatch warehouse");
+        }
+    }
+    private DispatchPdaOperation replay(String customerId, String type, String key, Object request) { DispatchPdaOperation op = operations.findKey(customerId, required(key, "Idempotency key is required")); if (op == null) return null; if (!type.equals(op.getOperationType()) || !hash(request).equals(op.getRequestHash())) throw conflict("Idempotency key was reused with a different request"); if (!"COMPLETED".equals(op.getStatus())) throw conflict("PDA operation is still processing"); return op; }
+    private void save(String customerId, Long taskId, String type, String key, Object request, Object result) { DispatchPdaOperation op = new DispatchPdaOperation(); op.setId(IdWorker.getId()); op.setCustomerId(customerId); op.setTaskId(taskId); op.setOperationType(type); op.setIdempotencyKey(required(key,"Idempotency key is required")); op.setRequestHash(hash(request)); op.setResultJson(json(result)); op.setStatus("COMPLETED"); op.setCreatedAt(LocalDateTime.now()); op.setUpdatedAt(op.getCreatedAt()); operations.insert(op); }
+    private <T> T read(DispatchPdaOperation op, Class<T> type) { try { return objectMapper.readValue(op.getResultJson(), type); } catch (Exception e) { throw new IllegalStateException("Cannot read PDA replay", e); } }
+    private String hash(Object value) { try { return HexFormat.of().formatHex(MessageDigest.getInstance("SHA-256").digest(json(value).getBytes(StandardCharsets.UTF_8))); } catch (Exception e) { throw new IllegalStateException(e); } }
+    private String json(Object value) { try { return objectMapper.writeValueAsString(value); } catch (Exception e) { throw new IllegalStateException(e); } }
+    private static long n(Long value) { return value == null ? 0 : value; }
+    private static long n(Integer value) { return value == null ? 0 : value; }
+    private static String trim(String value) { return value == null || value.trim().isEmpty() ? null : value.trim(); }
+    private static String required(String value, String message) { String result = trim(value); if (result == null) throw new ResponseStatusException(HttpStatus.BAD_REQUEST, message); return result; }
+    private static ResponseStatusException conflict(String message) { return new ResponseStatusException(HttpStatus.CONFLICT, message); }
+    private static ResponseStatusException notFound(String message) { return new ResponseStatusException(HttpStatus.NOT_FOUND, message); }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/pda/service/DispatchPickOrderAttributionService.java

@@ -0,0 +1,105 @@
+package com.baiyue.lastleg.dispatch.pda.service;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaPick;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaPickOrder;
+import com.baiyue.lastleg.dispatch.pda.mapper.DispatchPdaPickOrderMapper;
+import com.baiyue.lastleg.entity.LastlegOrder;
+import com.baiyue.lastleg.entity.LastlegOrderStatusHistory;
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundStockReceipt;
+import com.baiyue.lastleg.mapper.LastlegOrderMapper;
+import com.baiyue.lastleg.mapper.LastlegOrderStatusHistoryMapper;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDateTime;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+@Service
+public class DispatchPickOrderAttributionService {
+    @Resource private DispatchPdaPickOrderMapper attributions;
+    @Resource private LastlegOrderMapper orders;
+    @Resource private LastlegOrderStatusHistoryMapper history;
+
+    /** Call after the inventory position has been locked/moved and the PDA pick row has been inserted. */
+    public List<OrderPackages> attribute(String customerId, DispatchPdaPick pick) {
+        long remainingPackages = value(pick.getPackages());
+        long totalPackages = remainingPackages;
+        long totalQuantity = value(pick.getProductQuantity());
+        long allocatedPackages = 0;
+        long allocatedQuantity = 0;
+        Map<Long, Long> pickedByOrder = new LinkedHashMap<>();
+        for (InboundStockReceipt receipt : attributions.availableReceipts(customerId,
+            pick.getInventoryPositionId())) {
+            if (remainingPackages == 0) break;
+            long receiptPackages = value(receipt.getReceivedPackages())
+                - attributions.attributedPackages(customerId, receipt.getId());
+            if (receiptPackages <= 0) continue;
+            long packages = Math.min(remainingPackages, receiptPackages);
+            long nextPackages = allocatedPackages + packages;
+            long nextQuantity = totalPackages == 0 ? 0 : Math.floorDiv(totalQuantity * nextPackages, totalPackages);
+            long quantity = nextQuantity - allocatedQuantity;
+            DispatchPdaPickOrder row = new DispatchPdaPickOrder();
+            row.setId(IdWorker.getId());
+            row.setCustomerId(customerId);
+            row.setPickId(pick.getId());
+            row.setReceiptId(receipt.getId());
+            row.setOrderId(receipt.getOrderId());
+            row.setPackages(packages);
+            row.setProductQuantity(quantity);
+            row.setCreatedAt(pick.getPickedAt() == null ? LocalDateTime.now() : pick.getPickedAt());
+            attributions.insert(row);
+            pickedByOrder.merge(receipt.getOrderId(), packages, Long::sum);
+            remainingPackages -= packages;
+            allocatedPackages = nextPackages;
+            allocatedQuantity = nextQuantity;
+        }
+        if (remainingPackages != 0) throw conflict("PDA pick cannot be attributed to inbound receipt orders");
+        for (Map.Entry<Long, Long> entry : pickedByOrder.entrySet()) {
+            if (orders.increasePicked(customerId, entry.getKey(), entry.getValue()) != 1) {
+                throw conflict("Picked packages exceed tail-leg order remaining packages");
+            }
+        }
+        return pickedByOrder.entrySet().stream().map(e -> new OrderPackages(e.getKey(), e.getValue())).toList();
+    }
+
+    /** Call once for each departing PDA pick; repeated dispatch departure is protected by its outer idempotency key. */
+    public List<OrderPackages> depart(String customerId, String outboundNo, String dispatchNo, List<DispatchPdaPick> picks,
+                                      LocalDateTime departedAt) {
+        Map<Long, Long> shippedByOrder = new LinkedHashMap<>();
+        for (DispatchPdaPick pick : picks) {
+            for (DispatchPdaPickOrder row : attributions.listPick(customerId, pick.getId())) {
+                shippedByOrder.merge(row.getOrderId(), value(row.getPackages()), Long::sum);
+            }
+        }
+        for (Map.Entry<Long, Long> entry : shippedByOrder.entrySet()) {
+            LastlegOrder before = orders.lockById(customerId, entry.getKey());
+            if (before == null || orders.transferPickedToShipped(customerId, entry.getKey(), entry.getValue(), outboundNo) != 1) {
+                throw conflict("Tail-leg order picked packages are inconsistent");
+            }
+            long shipped = value(before.getShippedPackageCount()) + entry.getValue();
+            String to = shipped == value(before.getPackageCount()) ? "COMPLETED" : "PARTIALLY_SHIPPED";
+            LastlegOrderStatusHistory row = new LastlegOrderStatusHistory();
+            row.setOrderId(entry.getKey());
+            row.setFromStatus(before.getCurrentStatus());
+            row.setToStatus(to);
+            row.setEventId("DISPATCH_DEPART:" + dispatchNo);
+            row.setRemark("Dispatch departed " + entry.getValue() + " packages; cumulative shipped "
+                + shipped + "/" + value(before.getPackageCount()));
+            row.setCreatedAt(departedAt);
+            history.insert(row);
+        }
+        return shippedByOrder.entrySet().stream().map(e -> new OrderPackages(e.getKey(), e.getValue())).toList();
+    }
+
+    public record OrderPackages(Long orderId, long packages) {}
+    private static long value(Long value) { return value == null ? 0 : value; }
+    private static long value(Integer value) { return value == null ? 0 : value; }
+    private static ResponseStatusException conflict(String message) {
+        return new ResponseStatusException(HttpStatus.CONFLICT, message);
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dispatch/service/DispatchService.java

@@ -0,0 +1,261 @@
+package com.baiyue.lastleg.dispatch.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.lastleg.dispatch.dto.DispatchRequests;
+import com.baiyue.lastleg.dispatch.dto.DispatchResponse;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import com.baiyue.lastleg.dispatch.entity.DispatchPalletLock;
+import com.baiyue.lastleg.dispatch.mapper.DispatchCandidateMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchItemMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchOrderMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchPalletLockMapper;
+import com.baiyue.lastleg.dispatch.model.DispatchPalletCandidate;
+import jakarta.annotation.Resource;
+import org.springframework.dao.DuplicateKeyException;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@Service
+public class DispatchService {
+    public static final String PENDING_DEPARTURE = "PENDING_DEPARTURE";
+    public static final String CANCELLED = "CANCELLED";
+
+    @Resource private DispatchOrderMapper orders;
+    @Resource private DispatchItemMapper items;
+    @Resource private DispatchPalletLockMapper locks;
+    @Resource private DispatchCandidateMapper candidates;
+
+    public List<DispatchPalletCandidate> candidates(String customerId, String orderNo,
+                                                     String fbaWarehouseCode, String sourceStage) {
+        if (StringUtils.hasText(sourceStage) && !Set.of("PLAN", "RECEIVED").contains(sourceStage)) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "sourceStage must be PLAN or RECEIVED");
+        }
+        return candidates.available(customerId, trimToNull(orderNo), trimToNull(fbaWarehouseCode), trimToNull(sourceStage));
+    }
+
+    @Transactional
+    public DispatchResponse preArrange(String customerId, String operatorId, DispatchRequests.PreArrange request) {
+        List<Long> palletIds = request.planPalletIds().stream().filter(Objects::nonNull).distinct().sorted().toList();
+        if (palletIds.isEmpty() || palletIds.size() != request.planPalletIds().size()) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Plan pallet IDs must be unique and non-empty");
+        }
+        List<DispatchPalletCandidate> selected = candidates.lockSelected(customerId, palletIds);
+        if (selected.size() != palletIds.size()) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "One or more selected pallets are not in this tenant");
+        }
+        if (selected.stream().anyMatch(candidate -> candidate.packageCount() == null || candidate.packageCount() <= 0)) {
+            throw new ResponseStatusException(HttpStatus.CONFLICT, "Selected pallet has no remaining packages to dispatch");
+        }
+        Set<String> warehouseIds = selected.stream().map(DispatchPalletCandidate::overseasWarehouseId)
+            .filter(Objects::nonNull).map(String::trim).filter(value -> !value.isEmpty()).collect(Collectors.toSet());
+        if (warehouseIds.size() != 1 || selected.stream().anyMatch(candidate -> candidate.overseasWarehouseId() == null)) {
+            throw new ResponseStatusException(HttpStatus.CONFLICT, "A dispatch must belong to exactly one overseas warehouse");
+        }
+        for (DispatchPalletCandidate candidate : selected) {
+            boolean planLocked = candidate.planPalletId() != null
+                && locks.lockActive(customerId, "PLAN:" + candidate.planPalletId()) != null;
+            boolean receivedLocked = candidate.warehousePalletId() != null
+                && locks.lockActive(customerId, "RECEIVED:" + candidate.warehousePalletId()) != null;
+            if (planLocked || receivedLocked) {
+                throw new ResponseStatusException(HttpStatus.CONFLICT,
+                    "Pallet is already locked by another active dispatch: " + candidate.palletNo());
+            }
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+        DispatchOrder dispatch = new DispatchOrder();
+        dispatch.setId(IdWorker.getId());
+        dispatch.setCustomerId(customerId);
+        dispatch.setDispatchNo("PC" + now.format(DateTimeFormatter.BASIC_ISO_DATE) + dispatch.getId());
+        dispatch.setOverseasWarehouseId(selected.get(0).overseasWarehouseId());
+        dispatch.setOverseasWarehouseName(selected.get(0).overseasWarehouseName());
+        dispatch.setRoute(StringUtils.hasText(request.route()) ? request.route().trim() : route(selected));
+        dispatch.setFbaAppointmentNo(trimToNull(request.fbaAppointmentNo()));
+        dispatch.setFbaAppointmentStatus(defaultStatus(request.fbaAppointmentStatus()));
+        dispatch.setVehicleAppointmentStatus(defaultStatus(request.vehicleAppointmentStatus()));
+        dispatch.setStatus(PENDING_DEPARTURE);
+        dispatch.setItemCount(selected.size());
+        dispatch.setPalletCount(selected.size());
+        dispatch.setPackageCount(selected.stream().map(DispatchPalletCandidate::packageCount)
+            .filter(Objects::nonNull).mapToInt(Integer::intValue).sum());
+        dispatch.setPickedPackageCount(0);
+        dispatch.setShippedPackageCount(0);
+        dispatch.setCreatedBy(trimToNull(operatorId));
+        dispatch.setCreatedAt(now);
+        dispatch.setUpdatedAt(now);
+        orders.insert(dispatch);
+
+        for (DispatchPalletCandidate candidate : selected) {
+            DispatchPalletLock lock = new DispatchPalletLock();
+            lock.setId(IdWorker.getId());
+            lock.setCustomerId(customerId);
+            lock.setSourcePalletKey(candidate.sourcePalletKey());
+            lock.setActiveKey(candidate.sourcePalletKey());
+            lock.setPlanId(candidate.planId());
+            lock.setPlanPalletId(candidate.planPalletId());
+            lock.setWarehousePalletId(candidate.warehousePalletId());
+            lock.setDispatchOrderId(dispatch.getId());
+            lock.setStatus("ACTIVE");
+            lock.setLockedAt(now);
+            lock.setCreatedAt(now);
+            lock.setUpdatedAt(now);
+            try {
+                locks.insert(lock);
+            } catch (DuplicateKeyException exception) {
+                throw new ResponseStatusException(HttpStatus.CONFLICT,
+                    "Pallet is already locked by another active dispatch: " + candidate.palletNo(), exception);
+            }
+            DispatchItem item = new DispatchItem();
+            item.setId(IdWorker.getId());
+            item.setDispatchOrderId(dispatch.getId());
+            item.setCustomerId(customerId);
+            item.setPlanId(candidate.planId());
+            item.setPlanPalletId(candidate.planPalletId());
+            item.setWarehousePalletId(candidate.warehousePalletId());
+            item.setOrderId(candidate.orderId());
+            item.setOverseasWarehouseId(candidate.overseasWarehouseId());
+            item.setOverseasWarehouseName(candidate.overseasWarehouseName());
+            item.setOrderNo(candidate.orderNo());
+            item.setOrderRefs(candidate.orderRefs());
+            item.setInboundCode(candidate.inboundCode());
+            item.setPalletNo(candidate.palletNo());
+            item.setDestinationWarehouseId(candidate.destinationWarehouseId());
+            item.setDestinationWarehouseCode(candidate.destinationWarehouseCode());
+            item.setDestinationWarehouseName(candidate.destinationWarehouseName());
+            item.setFbaWarehouseCode(candidate.fbaWarehouseCode());
+            item.setPackageCount(Objects.requireNonNullElse(candidate.packageCount(), 0));
+            item.setVolumeCbm(Objects.requireNonNullElse(candidate.volumeCbm(), BigDecimal.ZERO));
+            item.setSourceStage(candidate.sourceStage());
+            item.setCreatedAt(now);
+            items.insert(item);
+        }
+        return response(dispatch, items.findByDispatchOrder(customerId, dispatch.getId()));
+    }
+
+    public PageResult<DispatchResponse> page(String customerId, DispatchRequests.Query query) {
+        Page<DispatchOrder> page = orders.selectPage(new Page<>(query.page(), query.size()),
+            new LambdaQueryWrapper<DispatchOrder>().eq(DispatchOrder::getCustomerId, customerId)
+                .like(StringUtils.hasText(query.dispatchNo()), DispatchOrder::getDispatchNo, query.dispatchNo())
+                .like(StringUtils.hasText(query.vehiclePlate()), DispatchOrder::getVehiclePlate, query.vehiclePlate())
+                .eq(StringUtils.hasText(query.status()), DispatchOrder::getStatus, query.status())
+                .like(StringUtils.hasText(query.fbaAppointmentNo()), DispatchOrder::getFbaAppointmentNo,
+                    query.fbaAppointmentNo())
+                .orderByDesc(DispatchOrder::getCreatedAt));
+        List<DispatchResponse> records = page.getRecords().stream()
+            .map(order -> response(order, items.findByDispatchOrder(customerId, order.getId()))).toList();
+        return new PageResult<>(records, page.getCurrent(), page.getSize(), page.getTotal(), page.getPages());
+    }
+
+    public DispatchResponse detail(String customerId, String dispatchNo) {
+        DispatchOrder dispatch = find(customerId, dispatchNo);
+        return response(dispatch, items.findByDispatchOrder(customerId, dispatch.getId()));
+    }
+
+    @Transactional
+    public DispatchResponse update(String customerId, String dispatchNo, DispatchRequests.Update request) {
+        DispatchOrder dispatch = orders.lockById(customerId, find(customerId, dispatchNo).getId());
+        if (dispatch == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Dispatch order not found");
+        // Vehicle plate is intentionally editable through all dispatch states.
+        dispatch.setVehiclePlate(trimToNull(request.vehiclePlate()));
+        dispatch.setDriverName(trimToNull(request.driverName()));
+        dispatch.setDriverPhone(trimToNull(request.driverPhone()));
+        dispatch.setCarrierName(trimToNull(request.carrierName()));
+        dispatch.setRoute(trimToNull(request.route()));
+        dispatch.setDepartAt(request.departAt());
+        dispatch.setFbaAppointmentNo(trimToNull(request.fbaAppointmentNo()));
+        dispatch.setFbaAppointmentStatus(defaultStatus(request.fbaAppointmentStatus()));
+        dispatch.setVehicleAppointmentStatus(defaultStatus(request.vehicleAppointmentStatus()));
+        dispatch.setEstimatedArrivalAt(request.estimatedArrivalAt());
+        if (StringUtils.hasText(request.status())) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                "Dispatch status is PDA-managed and cannot be changed by the edit endpoint");
+        }
+        dispatch.setUpdatedAt(LocalDateTime.now());
+        orders.updateById(dispatch);
+        return response(dispatch, items.findByDispatchOrder(customerId, dispatch.getId()));
+    }
+
+    @Transactional
+    public void cancel(String customerId, String dispatchNo) {
+        DispatchOrder dispatch = orders.lockById(customerId, find(customerId, dispatchNo).getId());
+        if (dispatch == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Dispatch order not found");
+        if (!(PENDING_DEPARTURE.equals(dispatch.getStatus()))) {
+            throw new ResponseStatusException(HttpStatus.CONFLICT, "Dispatched order cannot be cancelled");
+        }
+        LocalDateTime now = LocalDateTime.now();
+        dispatch.setStatus(CANCELLED);
+        dispatch.setUpdatedAt(now);
+        orders.updateById(dispatch);
+        List<DispatchPalletLock> activeLocks = locks.selectList(new LambdaQueryWrapper<DispatchPalletLock>()
+            .eq(DispatchPalletLock::getCustomerId, customerId)
+            .eq(DispatchPalletLock::getDispatchOrderId, dispatch.getId())
+            .eq(DispatchPalletLock::getStatus, "ACTIVE"));
+        for (DispatchPalletLock lock : activeLocks) {
+            lock.setStatus("RELEASED");
+            lock.setActiveKey(null);
+            lock.setReleasedAt(now);
+            lock.setUpdatedAt(now);
+            locks.updateById(lock);
+        }
+    }
+
+    private DispatchOrder find(String customerId, String dispatchNo) {
+        DispatchOrder dispatch = orders.findByDispatchNo(customerId, dispatchNo);
+        if (dispatch == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Dispatch order not found");
+        return dispatch;
+    }
+
+    private DispatchResponse response(DispatchOrder order, List<DispatchItem> itemList) {
+        String orderNos = itemList.stream().flatMap(item -> splitOrderRefs(item.getOrderRefs(), item.getOrderNo()).stream())
+            .distinct().collect(Collectors.joining(","));
+        return new DispatchResponse(order.getId(), order.getDispatchNo(), order.getVehiclePlate(), order.getDriverName(),
+            order.getDriverPhone(), order.getCarrierName(), orderNos, order.getRoute(),
+            order.getOverseasWarehouseId(), order.getOverseasWarehouseName(), order.getDepartAt(),
+            order.getFbaAppointmentNo(), order.getFbaAppointmentStatus(), order.getVehicleAppointmentStatus(),
+            order.getEstimatedArrivalAt(), order.getStatus(), Objects.requireNonNullElse(order.getItemCount(), 0),
+            Objects.requireNonNullElse(order.getPalletCount(), 0), Objects.requireNonNullElse(order.getPackageCount(), 0),
+            Objects.requireNonNullElse(order.getPickedPackageCount(), 0),
+            Objects.requireNonNullElse(order.getShippedPackageCount(), 0),
+            Math.max(0, Objects.requireNonNullElse(order.getPackageCount(), 0)
+                - Objects.requireNonNullElse(order.getShippedPackageCount(), 0)), order.getPartialCompletionReason(),
+            order.getCreatedAt(), itemList.stream().map(item -> new DispatchResponse.Item(item.getId(), item.getPlanPalletId(),
+                item.getWarehousePalletId(), item.getPalletNo(), item.getOverseasWarehouseId(), item.getOverseasWarehouseName(),
+                item.getOrderNo(), item.getOrderRefs(), item.getInboundCode(),
+                item.getDestinationWarehouseCode(), item.getDestinationWarehouseName(), item.getFbaWarehouseCode(),
+                Objects.requireNonNullElse(item.getPackageCount(), 0), item.getVolumeCbm(), item.getSourceStage())).toList());
+    }
+
+    private static String route(List<DispatchPalletCandidate> selected) {
+        return selected.stream().map(DispatchPalletCandidate::destinationWarehouseCode).filter(StringUtils::hasText)
+            .distinct().collect(Collectors.joining(" -> "));
+    }
+
+    private static List<String> splitOrderRefs(String refs, String fallback) {
+        String value = StringUtils.hasText(refs) ? refs : fallback;
+        return StringUtils.hasText(value) ? List.of(value.split(",")) : List.of();
+    }
+
+    private static String defaultStatus(String status) {
+        return StringUtils.hasText(status) ? status.trim().toUpperCase() : "PENDING";
+    }
+
+    private static String trimToNull(String value) {
+        return StringUtils.hasText(value) ? value.trim() : null;
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/DropshipMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.dropship;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.dropship.mapper")
+public class DropshipMapperConfiguration {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/controller/DropshipOrderController.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.dropship.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.lastleg.dropship.dto.DropshipRequests;
+import com.baiyue.lastleg.dropship.service.DropshipOrderService;
+import com.baiyue.lastleg.security.InternalServiceTokenGuard;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/internal/v1/lastleg/dropship")
+public class DropshipOrderController {
+    @Resource private DropshipOrderService service;
+    @Resource private InternalServiceTokenGuard tokenGuard;
+
+    @PostMapping("/receive")
+    public ApiResponse<Integer> receive(@RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+                                        @Valid @RequestBody DropshipRequests.Receive request) {
+        tokenGuard.verify(token);
+        return ApiResponse.success(service.receive(request));
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/dto/DropshipRequests.java

@@ -0,0 +1,15 @@
+package com.baiyue.lastleg.dropship.dto;
+
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.*;
+import java.util.List;
+
+public final class DropshipRequests {
+    private DropshipRequests() {}
+    public record Receive(@NotBlank String customerId, @NotNull Long orderId, @NotNull Long warehouseId,
+                          @NotBlank String idempotencyKey, @NotEmpty List<@Valid Pallet> pallets) {}
+    public record Pallet(@NotBlank String palletNo, @NotEmpty List<@Valid SkuPackages> skuPackages) {}
+    public record SkuPackages(@NotBlank String skuCode, String productName, @Positive long packageCount,
+                              @Positive long productQuantity,
+                              @NotEmpty List<@NotBlank String> cartonMarks) {}
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/entity/DropshipCarton.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.dropship.entity;
+
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Data;
+import java.time.LocalDateTime;
+
+@Data @TableName("ll_dropship_carton")
+public class DropshipCarton {
+    @TableId(type = IdType.ASSIGN_ID) private Long id;
+    private String customerId;
+    private Long orderId;
+    private Long profileId;
+    private Long warehousePalletId;
+    private String palletNo;
+    private String skuCode;
+    private String cartonMark;
+    private Integer cartonSequence;
+    private String status;
+    private String outboundOrderNo;
+    private Long version;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/entity/DropshipCartonLedger.java

@@ -0,0 +1,24 @@
+package com.baiyue.lastleg.dropship.entity;
+
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Data;
+import java.time.LocalDateTime;
+
+@Data @TableName("ll_dropship_carton_ledger")
+public class DropshipCartonLedger {
+    @TableId(type = IdType.ASSIGN_ID) private Long id;
+    private String customerId;
+    private Long orderId;
+    private Long cartonId;
+    private String cartonMark;
+    private String skuCode;
+    private String operationType;
+    private Long beforePackages;
+    private Long deltaPackages;
+    private Long afterPackages;
+    private String businessOrderNo;
+    private String idempotencyKey;
+    private String remark;
+    private LocalDateTime occurredAt;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/entity/DropshipOrderProfile.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.dropship.entity;
+
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Data;
+import java.time.LocalDateTime;
+
+@Data @TableName("ll_dropship_order_profile")
+public class DropshipOrderProfile {
+    @TableId(type = IdType.ASSIGN_ID) private Long id;
+    private String customerId;
+    private Long orderId;
+    private Long warehousePalletId;
+    private String palletNo;
+    /** Immutable pallet number snapshot supplied by the first-leg handover event. */
+    private String sourcePalletNo;
+    private Long inventoryPositionId;
+    private String status;
+    private String idempotencyKey;
+    private Long version;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/entity/DropshipSkuInventory.java

@@ -0,0 +1,19 @@
+package com.baiyue.lastleg.dropship.entity;
+
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Data;
+import java.time.LocalDateTime;
+
+@Data @TableName("ll_dropship_sku_inventory")
+public class DropshipSkuInventory {
+    @TableId(type = IdType.ASSIGN_ID) private Long id;
+    private String customerId;
+    private Long orderId;
+    private Long profileId;
+    private String skuCode;
+    private String productName;
+    private Long packageCount;
+    private Long productQuantity;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/mapper/DropshipCartonLedgerMapper.java

@@ -0,0 +1,8 @@
+package com.baiyue.lastleg.dropship.mapper;
+import com.baiyue.lastleg.dropship.entity.DropshipCartonLedger;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.*;
+public interface DropshipCartonLedgerMapper extends BaseMapper<DropshipCartonLedger> {
+    @Select("SELECT * FROM ll_dropship_carton_ledger WHERE customer_id=#{customerId} AND idempotency_key=#{key} LIMIT 1")
+    DropshipCartonLedger findIdempotency(@Param("customerId") String customerId, @Param("key") String key);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/mapper/DropshipCartonMapper.java

@@ -0,0 +1,15 @@
+package com.baiyue.lastleg.dropship.mapper;
+import com.baiyue.lastleg.dropship.entity.DropshipCarton;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.*;
+import java.util.List;
+public interface DropshipCartonMapper extends BaseMapper<DropshipCarton> {
+    @Select("SELECT * FROM ll_dropship_carton WHERE customer_id=#{customerId} AND order_id=#{orderId} AND carton_mark=#{cartonMark} LIMIT 1")
+    DropshipCarton find(@Param("customerId") String customerId, @Param("orderId") Long orderId, @Param("cartonMark") String cartonMark);
+
+    @Select("SELECT * FROM ll_dropship_carton WHERE customer_id=#{customerId} AND profile_id=#{profileId} ORDER BY carton_sequence")
+    List<DropshipCarton> listProfile(@Param("customerId") String customerId, @Param("profileId") Long profileId);
+
+    @Select("SELECT * FROM ll_dropship_carton WHERE customer_id=#{customerId} AND order_id=#{orderId} ORDER BY profile_id,carton_sequence")
+    List<DropshipCarton> listOrder(@Param("customerId") String customerId, @Param("orderId") Long orderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/mapper/DropshipOrderProfileMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.dropship.mapper;
+import com.baiyue.lastleg.dropship.entity.DropshipOrderProfile;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.*;
+import java.util.List;
+public interface DropshipOrderProfileMapper extends BaseMapper<DropshipOrderProfile> {
+    @Select("SELECT * FROM ll_dropship_order_profile WHERE customer_id=#{customerId} AND order_id=#{orderId} ORDER BY source_pallet_no")
+    List<DropshipOrderProfile> listOrder(@Param("customerId") String customerId, @Param("orderId") Long orderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/mapper/DropshipSkuInventoryMapper.java

@@ -0,0 +1,13 @@
+package com.baiyue.lastleg.dropship.mapper;
+
+import com.baiyue.lastleg.dropship.entity.DropshipSkuInventory;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface DropshipSkuInventoryMapper extends BaseMapper<DropshipSkuInventory> {
+    @Select("SELECT * FROM ll_dropship_sku_inventory WHERE customer_id=#{customerId} AND order_id=#{orderId} ORDER BY profile_id,sku_code")
+    List<DropshipSkuInventory> listOrder(@Param("customerId") String customerId, @Param("orderId") Long orderId);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dropship/service/DropshipOrderService.java

@@ -0,0 +1,184 @@
+package com.baiyue.lastleg.dropship.service;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.dropship.dto.DropshipRequests;
+import com.baiyue.lastleg.dropship.entity.*;
+import com.baiyue.lastleg.dropship.mapper.*;
+import com.baiyue.lastleg.entity.LastlegOrder;
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundStockReceipt;
+import com.baiyue.lastleg.mapper.LastlegOrderMapper;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDateTime;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@Service
+public class DropshipOrderService {
+    @Resource private LastlegOrderMapper orders;
+    @Resource private DropshipOrderProfileMapper profiles;
+    @Resource private DropshipSkuInventoryMapper skuInventory;
+    @Resource private DropshipCartonMapper cartons;
+    @Resource private DropshipCartonLedgerMapper ledger;
+
+    @Transactional
+    public int receive(DropshipRequests.Receive request) {
+        LastlegOrder order = orders.selectById(request.orderId());
+        if (order == null || !request.customerId().equals(order.getCustomerId())) throw conflict("Tail order not found");
+        if (!"ONE_CLICK_DROPSHIP".equals(order.getOrderType())) throw conflict("Order is not a one-click dropship order");
+        long totalPackages = request.pallets().stream().flatMap(value -> value.skuPackages().stream())
+            .mapToLong(DropshipRequests.SkuPackages::packageCount).sum();
+        long totalQuantity = request.pallets().stream().flatMap(value -> value.skuPackages().stream())
+            .mapToLong(DropshipRequests.SkuPackages::productQuantity).sum();
+        if (order.getPackageCount() != null && order.getPackageCount().longValue() != totalPackages) {
+            throw conflict("SKU package total does not equal order package count");
+        }
+        if (order.getProductQuantity() != null && order.getProductQuantity().longValue() != totalQuantity) {
+            throw conflict("SKU product quantity total does not equal order product quantity");
+        }
+        List<DropshipOrderProfile> existing = profiles.listOrder(request.customerId(), request.orderId());
+        if (!existing.isEmpty()) {
+            Set<String> existingPallets = existing.stream().map(DropshipOrderProfile::getSourcePalletNo)
+                .collect(java.util.stream.Collectors.toSet());
+            Set<String> requestedPallets = request.pallets().stream().map(value -> value.palletNo().trim())
+                .collect(java.util.stream.Collectors.toSet());
+            if (!existingPallets.equals(requestedPallets)) throw conflict("Dropship order pallet snapshot conflicts with existing data");
+            return Math.toIntExact(totalPackages);
+        }
+
+        validateMarks(request);
+        LocalDateTime now = LocalDateTime.now();
+        for (DropshipRequests.Pallet inputPallet : request.pallets()) {
+            DropshipOrderProfile profile = profile(request, order, inputPallet, now);
+            profiles.insert(profile);
+            int sequence = 0;
+            for (DropshipRequests.SkuPackages input : inputPallet.skuPackages()) {
+                DropshipSkuInventory inventory = new DropshipSkuInventory();
+                inventory.setId(IdWorker.getId()); inventory.setCustomerId(request.customerId()); inventory.setOrderId(order.getId());
+                inventory.setProfileId(profile.getId()); inventory.setSkuCode(input.skuCode()); inventory.setProductName(input.productName());
+                inventory.setPackageCount(input.packageCount()); inventory.setProductQuantity(input.productQuantity());
+                inventory.setCreatedAt(now); inventory.setUpdatedAt(now);
+                skuInventory.insert(inventory);
+                for (String mark : input.cartonMarks()) {
+                    DropshipCarton carton = new DropshipCarton();
+                    carton.setId(IdWorker.getId()); carton.setCustomerId(request.customerId()); carton.setOrderId(order.getId());
+                    carton.setProfileId(profile.getId()); carton.setWarehousePalletId(null); carton.setPalletNo(null);
+                    carton.setSkuCode(input.skuCode()); carton.setCartonMark(mark.trim()); carton.setCartonSequence(++sequence);
+                    carton.setStatus("PENDING_INBOUND"); carton.setVersion(0L); carton.setCreatedAt(now); carton.setUpdatedAt(now);
+                    cartons.insert(carton);
+                    ledger.insert(stockInFact(request, order, carton, now));
+                }
+            }
+        }
+        return Math.toIntExact(totalPackages);
+    }
+
+    private void validateMarks(DropshipRequests.Receive request) {
+        Set<String> marks = new HashSet<>();
+        Set<String> palletNos = new HashSet<>();
+        for (DropshipRequests.Pallet pallet : request.pallets()) {
+            if (!palletNos.add(pallet.palletNo().trim())) throw conflict("Duplicate pallet number: " + pallet.palletNo());
+            Set<String> skus = new HashSet<>();
+            for (DropshipRequests.SkuPackages item : pallet.skuPackages()) {
+                if (item.packageCount() != item.cartonMarks().size()) {
+                    throw conflict("SKU packageCount must equal cartonMarks count: " + item.skuCode());
+                }
+                if (!skus.add(item.skuCode().trim())) throw conflict("Duplicate SKU on pallet: " + item.skuCode());
+                for (String mark : item.cartonMarks()) {
+                    if (!marks.add(mark.trim())) throw conflict("Duplicate carton mark: " + mark);
+                }
+            }
+        }
+    }
+
+    private DropshipOrderProfile profile(DropshipRequests.Receive request, LastlegOrder order,
+                                         DropshipRequests.Pallet input, LocalDateTime now) {
+        DropshipOrderProfile profile = new DropshipOrderProfile();
+        profile.setId(IdWorker.getId()); profile.setCustomerId(request.customerId()); profile.setOrderId(order.getId());
+        profile.setSourcePalletNo(input.palletNo().trim());
+        profile.setStatus("PENDING_INBOUND"); profile.setVersion(0L);
+        profile.setIdempotencyKey(request.idempotencyKey() + ":" + input.palletNo().trim());
+        profile.setCreatedAt(now); profile.setUpdatedAt(now);
+        return profile;
+    }
+
+    @Transactional
+    public void activateAfterStockIn(String customerId, Long orderId, Long taskId,
+                                     List<InboundStockReceipt> receipts) {
+        List<DropshipOrderProfile> profilesForOrder = profiles.listOrder(customerId, orderId);
+        if (profilesForOrder.isEmpty()) return;
+        if (profilesForOrder.stream().allMatch(profile -> "ACTIVE".equals(profile.getStatus()))) return;
+        if (profilesForOrder.stream().anyMatch(profile -> "ACTIVE".equals(profile.getStatus()))) {
+            throw conflict("Dropship pallet activation is incomplete; repair profiles before retrying");
+        }
+        Map<Long, List<InboundStockReceipt>> receiptsByPallet = receipts.stream()
+            .filter(receipt -> receipt.getWarehousePalletId() != null)
+            .collect(Collectors.groupingBy(InboundStockReceipt::getWarehousePalletId));
+        if (receiptsByPallet.size() != profilesForOrder.size()) {
+            throw conflict("PDA pallet count does not match dropship source pallet count");
+        }
+        List<DropshipOrderProfile> orderedProfiles = profilesForOrder.stream()
+            .sorted(java.util.Comparator.comparing(DropshipOrderProfile::getSourcePalletNo)).toList();
+        List<List<InboundStockReceipt>> orderedReceipts = receiptsByPallet.values().stream()
+            .sorted(java.util.Comparator.comparing(value -> value.get(0).getWarehousePalletId())).toList();
+        LocalDateTime now = LocalDateTime.now();
+        for (int index = 0; index < orderedProfiles.size(); index++) {
+            DropshipOrderProfile profile = orderedProfiles.get(index);
+            List<InboundStockReceipt> actual = orderedReceipts.get(index);
+            List<DropshipCarton> profileCartons = cartons.listProfile(customerId, profile.getId());
+            long expected = profileCartons.size();
+            long received = actual.stream().mapToLong(value -> value.getReceivedPackages() == null ? 0 : value.getReceivedPackages()).sum();
+            if (expected != received) throw conflict("PDA package count does not match dropship carton snapshot");
+            Long positionId = actual.get(0).getInventoryPositionId();
+            if (actual.stream().anyMatch(value -> !java.util.Objects.equals(positionId, value.getInventoryPositionId()))) {
+                throw conflict("Dropship source pallet maps to multiple inventory positions");
+            }
+            InboundStockReceipt first = actual.get(0);
+            profile.setWarehousePalletId(first.getWarehousePalletId()); profile.setPalletNo(first.getPalletNo());
+            profile.setInventoryPositionId(positionId); profile.setStatus("ACTIVE"); profile.setVersion(value(profile.getVersion()) + 1);
+            profile.setUpdatedAt(now); profiles.updateById(profile);
+            for (DropshipCarton carton : profileCartons) {
+                carton.setWarehousePalletId(first.getWarehousePalletId()); carton.setPalletNo(first.getPalletNo());
+                carton.setStatus("AVAILABLE"); carton.setVersion(value(carton.getVersion()) + 1); carton.setUpdatedAt(now);
+                cartons.updateById(carton);
+                DropshipCartonLedger activation = stockInActivation(customerId, orderId, taskId, carton, now);
+                ledger.insert(activation);
+            }
+        }
+    }
+
+    private DropshipCartonLedger stockInActivation(String customerId, Long orderId, Long taskId,
+                                                   DropshipCarton carton, LocalDateTime now) {
+        DropshipCartonLedger fact = new DropshipCartonLedger();
+        fact.setId(IdWorker.getId()); fact.setCustomerId(customerId); fact.setOrderId(orderId);
+        fact.setCartonId(carton.getId()); fact.setCartonMark(carton.getCartonMark()); fact.setSkuCode(carton.getSkuCode());
+        fact.setOperationType("STOCK_IN"); fact.setBeforePackages(0L); fact.setDeltaPackages(1L); fact.setAfterPackages(1L);
+        fact.setIdempotencyKey("PDA_STOCK_IN:" + taskId + ":" + carton.getId()); fact.setOccurredAt(now); fact.setCreatedAt(now);
+        return fact;
+    }
+
+    private DropshipCartonLedger stockInFact(DropshipRequests.Receive request, LastlegOrder order,
+                                              DropshipCarton carton, LocalDateTime now) {
+        DropshipCartonLedger fact = new DropshipCartonLedger();
+        fact.setId(IdWorker.getId()); fact.setCustomerId(request.customerId()); fact.setOrderId(order.getId());
+        fact.setCartonId(carton.getId()); fact.setCartonMark(carton.getCartonMark()); fact.setSkuCode(carton.getSkuCode());
+        fact.setOperationType("SNAPSHOT_CREATED"); fact.setBeforePackages(0L); fact.setDeltaPackages(0L); fact.setAfterPackages(0L);
+        fact.setBusinessOrderNo(order.getOrderNo());
+        fact.setIdempotencyKey(request.idempotencyKey() + ":" + carton.getCartonMark());
+        fact.setOccurredAt(now); fact.setCreatedAt(now);
+        return fact;
+    }
+
+    private static long value(Long value) { return value == null ? 0L : value; }
+
+    private static ResponseStatusException conflict(String message) {
+        return new ResponseStatusException(HttpStatus.CONFLICT, message);
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dto/LastlegOrderDetailResponse.java

@@ -0,0 +1,27 @@
+package com.baiyue.lastleg.dto;
+
+import com.baiyue.lastleg.entity.LastlegOrder;
+import com.baiyue.lastleg.entity.LastlegOrderDetail;
+import com.baiyue.lastleg.entity.LastlegOrderStatusHistory;
+import com.baiyue.lastleg.dropship.entity.DropshipCarton;
+import com.baiyue.lastleg.dropship.entity.DropshipSkuInventory;
+
+import java.util.List;
+
+public record LastlegOrderDetailResponse(
+    LastlegOrder order,
+    List<LastlegOrderDetail> cargo,
+    List<LastlegOrderStatusHistory> statusHistory,
+    List<DropshipPallet> dropshipPallets
+) {
+    public record DropshipPallet(
+        Long profileId,
+        String sourcePalletNo,
+        Long warehousePalletId,
+        String warehousePalletNo,
+        Long inventoryPositionId,
+        String status,
+        List<DropshipSkuInventory> skuInventory,
+        List<DropshipCarton> cartons
+    ) {}
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dto/LastlegOrderRequests.java

@@ -0,0 +1,55 @@
+package com.baiyue.lastleg.dto;
+
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.Size;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public final class LastlegOrderRequests {
+    private LastlegOrderRequests() {
+    }
+
+    public record Query(
+        @Min(1) long page,
+        @Min(1) @Max(200) long size,
+        String orderNo,
+        String inboundCode,
+        String sourceOrderNo,
+        String containerNo,
+        String status,
+        String transferWarehouseCode,
+        Boolean abnormal,
+        Boolean detained,
+        LocalDateTime createdFrom,
+        LocalDateTime createdTo
+    ) {
+        public Query {
+            if (page == 0) page = 1;
+            if (size == 0) size = 20;
+        }
+    }
+
+    public record TransferDestination(
+        @NotEmpty @Size(max = 200) List<Long> orderIds,
+        @NotBlank @Size(max = 128) String warehouseId,
+        @NotBlank @Size(max = 128) String warehouseCode,
+        @NotBlank @Size(max = 255) String warehouseName,
+        @Size(max = 500) String remark
+    ) {
+    }
+
+    public record SingleTransferDestination(
+        @NotBlank @Size(max = 128) String warehouseId,
+        @NotBlank @Size(max = 128) String warehouseCode,
+        @NotBlank @Size(max = 255) String warehouseName,
+        @Size(max = 500) String remark
+    ) {
+        public TransferDestination withOrderId(long orderId) {
+            return new TransferDestination(List.of(orderId), warehouseId, warehouseCode, warehouseName, remark);
+        }
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dto/LastlegOrderSummary.java

@@ -0,0 +1,51 @@
+package com.baiyue.lastleg.dto;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+@Schema(description = "Tail-leg order row at inbound-code granularity")
+public record LastlegOrderSummary(
+    Long id,
+    String orderNo,
+    String orderType,
+    String sourceInboundId,
+    String inboundCode,
+    String sourceOrderNo,
+    String customerName,
+    String overseasWarehouseId,
+    String overseasWarehouseName,
+    String transferWarehouseId,
+    String transferWarehouseCode,
+    String transferWarehouseName,
+    String fbaWarehouseCode,
+    String containerNo,
+    String containerStatus,
+    Boolean abnormal,
+    Boolean detained,
+    Integer palletCount,
+    Integer packageCount,
+    Integer pickedPackageCount,
+    Integer shippedPackageCount,
+    Integer remainingPackageCount,
+    BigDecimal volumeCbm,
+    Integer productQuantity,
+    BigDecimal volumeWeightKg,
+    LocalDateTime estimatedArrivalAt,
+    LocalDateTime actualArrivalAt,
+    LocalDateTime estimatedWarehouseAt,
+    String inboundOrderNo,
+    String outboundOrderNo,
+    String deliveryOrderNo,
+    String relabelOrderNo,
+    String relabelStatus,
+    String palletMergeFlag,
+    String currentStatus,
+    String subOrderStatus,
+    String privateRemark,
+    String customerRemark,
+    String warehouseRemark,
+    LocalDateTime createdAt
+) {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/dto/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * API request and response models for last-leg delivery.
+ * / 尾程配送 API 请求与响应模型。
+ */
+package com.baiyue.lastleg.dto;

lastleg-service/src/main/java/com/baiyue/lastleg/entity/LastlegEventInbox.java

@@ -0,0 +1,3 @@
+package com.baiyue.lastleg.entity;
+import com.baomidou.mybatisplus.annotation.*; import lombok.Data; import java.time.LocalDateTime;
+@Data @TableName("ll_loading_event_inbox") public class LastlegEventInbox { @TableId private String eventId; private String customerId; private String eventType; private Integer eventVersion; private String payloadHash; private String payloadJson; private String status; private LocalDateTime receivedAt; private LocalDateTime processedAt; private String lastError; }

lastleg-service/src/main/java/com/baiyue/lastleg/entity/LastlegOrder.java

@@ -0,0 +1,64 @@
+package com.baiyue.lastleg.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_order")
+public class LastlegOrder {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String orderNo;
+    private String customerId;
+    private String orderType;
+    private String inboundCode;
+    private String sourceRegion;
+    private String sourceInboundId;
+    private String rootInboundId;
+    private String sourceOrderId;
+    private String sourceOrderNo;
+    private String rootOrderId;
+    private String customerName;
+    private String overseasWarehouseId;
+    private String overseasWarehouseName;
+    private String fbaWarehouseCode;
+    private String containerNo;
+    private String transferWarehouseId;
+    private String transferWarehouseCode;
+    private String transferWarehouseName;
+    private String containerStatus;
+    private Boolean abnormal;
+    private Boolean detained;
+    private Integer palletCount;
+    private Integer packageCount;
+    private Integer pickedPackageCount;
+    private Integer shippedPackageCount;
+    private BigDecimal volumeCbm;
+    private Integer productQuantity;
+    private BigDecimal volumeWeightKg;
+    private LocalDateTime estimatedArrivalAt;
+    private LocalDateTime actualArrivalAt;
+    private LocalDateTime estimatedWarehouseAt;
+    private String inboundOrderNo;
+    private String outboundOrderNo;
+    private String deliveryOrderNo;
+    private String relabelOrderNo;
+    private String relabelStatus;
+    private String palletMergeFlag;
+    private String currentStatus;
+    private String subOrderStatus;
+    private String privateRemark;
+    private String customerRemark;
+    private String warehouseRemark;
+    private String sourceEventId;
+    private String sourceLoadingPlanId;
+    private Long sourceLoadingPlanVersion;
+    private Long sourceHandoverVersion;
+    private String sourcePayloadHash;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/entity/LastlegOrderDetail.java

@@ -0,0 +1,3 @@
+package com.baiyue.lastleg.entity;
+import com.baomidou.mybatisplus.annotation.*; import lombok.Data; import java.math.BigDecimal;
+@Data @TableName("ll_order_detail") public class LastlegOrderDetail { @TableId(type=IdType.AUTO) private Long id; private Long orderId; private String sourceInboundDetailId; private String skuCode; private String productNameZh; private String productNameEn; private Integer packageCount; private Integer productQuantity; private Integer palletCount; private BigDecimal grossWeightKg; private BigDecimal netWeightKg; private BigDecimal dimensionalWeightKg; private BigDecimal volumeCbm; private String destinationWarehouseId; private String destinationWarehouseCode; private String destinationWarehouseName; private String fbaTrackingNo; private String shipmentNo; private String shippingMark; }

lastleg-service/src/main/java/com/baiyue/lastleg/entity/LastlegOrderStatusHistory.java

@@ -0,0 +1,3 @@
+package com.baiyue.lastleg.entity;
+import com.baomidou.mybatisplus.annotation.*; import lombok.Data; import java.time.LocalDateTime;
+@Data @TableName("ll_loading_order_status_history") public class LastlegOrderStatusHistory { @TableId(type=IdType.AUTO) private Long id; private Long orderId; private String fromStatus; private String toStatus; private String eventId; private String remark; private LocalDateTime createdAt; }

lastleg-service/src/main/java/com/baiyue/lastleg/entity/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * Persistence entities mapped to last-leg MySQL tables.
+ * / 映射尾程 MySQL 数据表的持久化实体。
+ */
+package com.baiyue.lastleg.entity;

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/InboundPlanMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan({"com.baiyue.lastleg.inboundplan.mapper", "com.baiyue.lastleg.inboundplan.pda.mapper"})
+public class InboundPlanMapperConfiguration {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/controller/InboundPlanController.java

@@ -0,0 +1,74 @@
+package com.baiyue.lastleg.inboundplan.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.inboundplan.dto.ConvertInboundPlanRequest;
+import com.baiyue.lastleg.inboundplan.dto.BatchFbaAppointmentRequest;
+import com.baiyue.lastleg.inboundplan.dto.FbaAppointmentResponse;
+import com.baiyue.lastleg.inboundplan.dto.InboundPlanResponse;
+import com.baiyue.lastleg.inboundplan.service.InboundFbaAppointmentService;
+import com.baiyue.lastleg.inboundplan.service.InboundPlanService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.server.ResponseStatusException;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg/inbound-plans")
+@Tag(name = "Tail-leg inbound plans")
+public class InboundPlanController {
+    @Resource private InboundPlanService service;
+    @Resource private InboundFbaAppointmentService appointmentService;
+
+    @PostMapping("/convert")
+    @Operation(summary = "Convert the entire container to one inbound plan")
+    public ApiResponse<InboundPlanResponse> convert(@AuthenticationPrincipal AuthenticatedUser user,
+                                                    @Valid @RequestBody ConvertInboundPlanRequest request) {
+        return ApiResponse.success(service.convert(scope(user, request.customerId()), request.orderId()));
+    }
+
+    @GetMapping("/{planNo}")
+    @Operation(summary = "Get an inbound plan with lines, pallets and allocations")
+    public ApiResponse<InboundPlanResponse> detail(@AuthenticationPrincipal AuthenticatedUser user,
+                                                   @PathVariable String planNo,
+                                                   @RequestParam(required = false) String customerId) {
+        return ApiResponse.success(service.detailByPlanNo(scope(user, customerId), planNo));
+    }
+
+    @PostMapping("/fba-appointments/batch")
+    @Operation(summary = "Create one FBA appointment for selected inbound lines")
+    public ApiResponse<FbaAppointmentResponse> batchFbaAppointment(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @Valid @RequestBody BatchFbaAppointmentRequest request) {
+        String customerId = scope(user, request.customerId());
+        String operatorId = user.userId() == null ? user.username() : String.valueOf(user.userId());
+        return ApiResponse.success(appointmentService.batchCreate(customerId, operatorId, request));
+    }
+
+    @GetMapping("/fba-appointments/{appointmentNo}")
+    @Operation(summary = "Get an FBA appointment and its selected inbound lines")
+    public ApiResponse<FbaAppointmentResponse> fbaAppointmentDetail(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @PathVariable String appointmentNo,
+        @RequestParam(required = false) String customerId) {
+        return ApiResponse.success(appointmentService.detail(scope(user, customerId), appointmentNo));
+    }
+
+    private String scope(AuthenticatedUser user, String requestedCustomer) {
+        if (user == null || user.tenantId() == null) {
+            throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        }
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedCustomer == null || requestedCustomer.isBlank() || "0".equals(requestedCustomer)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                    "Platform request must specify target tenant");
+            }
+            return requestedCustomer;
+        }
+        return String.valueOf(user.tenantId());
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/dto/BatchFbaAppointmentRequest.java

@@ -0,0 +1,19 @@
+package com.baiyue.lastleg.inboundplan.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record BatchFbaAppointmentRequest(
+    String customerId,
+    @NotEmpty @Size(max = 500) List<@NotNull Long> lineIds,
+    @NotBlank @Size(max = 64) String appointmentNo,
+    @NotNull LocalDateTime appointmentAt,
+    @NotBlank @Size(max = 32) String appointmentStatus,
+    @Size(max = 1000) String appointmentRemark
+) {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/dto/ConvertInboundPlanRequest.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.dto;
+
+import jakarta.validation.constraints.NotNull;
+
+public record ConvertInboundPlanRequest(
+    @NotNull Long orderId,
+    String customerId
+) {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/dto/FbaAppointmentResponse.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.inboundplan.dto;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record FbaAppointmentResponse(
+    Long id,
+    String customerId,
+    String appointmentNo,
+    LocalDateTime appointmentAt,
+    String appointmentStatus,
+    String appointmentRemark,
+    String fbaWarehouseCode,
+    int selectedCount,
+    String createdBy,
+    LocalDateTime createdAt,
+    LocalDateTime updatedAt,
+    List<Item> items
+) {
+    public record Item(Long id, Long planId, Long lineId, Long orderId, String inboundCode,
+                       String fbaWarehouseCode) {
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/dto/InboundPlanResponse.java

@@ -0,0 +1,37 @@
+package com.baiyue.lastleg.inboundplan.dto;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record InboundPlanResponse(
+    Long id,
+    String planNo,
+    String customerId,
+    String containerNo,
+    String status,
+    int lineCount,
+    int palletCount,
+    BigDecimal totalVolumeCbm,
+    List<Line> lines,
+    List<Pallet> pallets,
+    List<Allocation> allocations
+) {
+    public record Line(Long id, Long orderId, String inboundCode, String fbaWarehouseCode, String destinationWarehouseId,
+                       String destinationWarehouseCode, String destinationWarehouseName,
+                       BigDecimal volumeCbm, int requiredPackageCount, int plannedPalletCount) {
+    }
+
+    public record Pallet(Long id, String palletNo, String destinationWarehouseId,
+                         String destinationWarehouseCode, String destinationWarehouseName,
+                         BigDecimal capacityCbm, BigDecimal allocatedVolumeCbm, int sequenceNo,
+                         Long warehousePalletId, Long warehouseLocationId, Long warehouseResourceLockId,
+                         String assignmentStatus, LocalDateTime lockedAt, BigDecimal actualVolumeCbm,
+                         int actualPackageCount) {
+    }
+
+    public record Allocation(Long lineId, Long palletId, BigDecimal allocatedVolumeCbm,
+                             int plannedPackageCount, int countedPackageCount, int pickedPackageCount,
+                             BigDecimal actualVolumeCbm, String status, int version) {
+    }
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundFbaAppointment.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_inbound_fba_appointment")
+public class InboundFbaAppointment {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private String customerId;
+    private String appointmentNo;
+    private LocalDateTime appointmentAt;
+    private String appointmentStatus;
+    private String appointmentRemark;
+    private String fbaWarehouseCode;
+    private Integer selectedCount;
+    private String createdBy;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundFbaAppointmentItem.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_inbound_fba_appointment_item")
+public class InboundFbaAppointmentItem {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long appointmentId;
+    private Long planId;
+    private Long lineId;
+    private Long orderId;
+    private String inboundCode;
+    private String fbaWarehouseCode;
+    private LocalDateTime createdAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundPlan.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_inbound_plan")
+public class InboundPlan {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private String planNo;
+    private String customerId;
+    private String containerNo;
+    private String status;
+    private Integer lineCount;
+    private Integer palletCount;
+    private BigDecimal totalVolumeCbm;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundPlanLine.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+@Data
+@TableName("ll_inbound_plan_line")
+public class InboundPlanLine {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long planId;
+    private Long orderId;
+    private String inboundCode;
+    private String fbaWarehouseCode;
+    private String destinationWarehouseId;
+    private String destinationWarehouseCode;
+    private String destinationWarehouseName;
+    private BigDecimal volumeCbm;
+    private Integer requiredPackageCount;
+    private Integer plannedPalletCount;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundPlanPallet.java

@@ -0,0 +1,31 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_inbound_plan_pallet")
+public class InboundPlanPallet {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long planId;
+    private String palletNo;
+    private String destinationWarehouseId;
+    private String destinationWarehouseCode;
+    private String destinationWarehouseName;
+    private BigDecimal capacityCbm;
+    private BigDecimal allocatedVolumeCbm;
+    private Integer sequenceNo;
+    private Long warehousePalletId;
+    private Long warehouseLocationId;
+    private Long warehouseResourceLockId;
+    private String assignmentStatus;
+    private LocalDateTime lockedAt;
+    private BigDecimal actualVolumeCbm;
+    private Integer actualPackageCount;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundPlanPalletAllocation.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+@Data
+@TableName("ll_inbound_plan_pallet_allocation")
+public class InboundPlanPalletAllocation {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long planId;
+    private Long lineId;
+    private Long palletId;
+    private BigDecimal allocatedVolumeCbm;
+    private Integer plannedPackageCount;
+    private Integer countedPackageCount;
+    private Integer pickedPackageCount;
+    private BigDecimal actualVolumeCbm;
+    private String status;
+    private Integer version;
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundFbaAppointmentItemMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointmentItem;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface InboundFbaAppointmentItemMapper extends BaseMapper<InboundFbaAppointmentItem> {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundFbaAppointmentMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointment;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface InboundFbaAppointmentMapper extends BaseMapper<InboundFbaAppointment> {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundFbaAppointmentQueryMapper.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baiyue.lastleg.inboundplan.model.FbaAppointmentLineSnapshot;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface InboundFbaAppointmentQueryMapper {
+    @Select("<script>" +
+        "SELECT l.id AS lineId,l.plan_id AS planId,l.order_id AS orderId,l.inbound_code AS inboundCode," +
+        "l.fba_warehouse_code AS fbaWarehouseCode " +
+        "FROM ll_inbound_plan_line l JOIN ll_inbound_plan p ON p.id=l.plan_id " +
+        "WHERE p.customer_id=#{customerId} AND l.id IN " +
+        "<foreach collection='lineIds' item='id' open='(' separator=',' close=')'>#{id}</foreach> " +
+        "ORDER BY l.id FOR UPDATE" +
+        "</script>")
+    List<FbaAppointmentLineSnapshot> lockLines(@Param("customerId") String customerId,
+                                                @Param("lineIds") List<Long> lineIds);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundPlanLineMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanLine;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface InboundPlanLineMapper extends BaseMapper<InboundPlanLine> {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundPlanMapper.java

@@ -0,0 +1,13 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlan;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface InboundPlanMapper extends BaseMapper<InboundPlan> {
+    @Select("SELECT * FROM ll_inbound_plan WHERE customer_id=#{customerId} AND container_no=#{containerNo} LIMIT 1")
+    InboundPlan findByContainer(@Param("customerId") String customerId, @Param("containerNo") String containerNo);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundPlanOrderMapper.java

@@ -0,0 +1,50 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baiyue.lastleg.inboundplan.model.SourceOrderSnapshot;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Mapper
+public interface InboundPlanOrderMapper {
+    @Select("SELECT container_no FROM ll_order WHERE customer_id=#{customerId} AND id=#{orderId} LIMIT 1")
+    String findContainerNo(@Param("customerId") String customerId, @Param("orderId") Long orderId);
+
+    @Select("SELECT o.id AS orderId,o.customer_id AS customerId,o.container_no AS containerNo," +
+        "o.inbound_code AS inboundCode,o.current_status AS currentStatus,o.inbound_order_no AS inboundOrderNo," +
+        "COALESCE(o.volume_cbm,0) AS volumeCbm,COALESCE(o.package_count,0) AS packageCount," +
+        "NULLIF(o.fba_warehouse_code,'') AS fbaWarehouseCode," +
+        "COALESCE(NULLIF(o.transfer_warehouse_id,''),MIN(NULLIF(d.destination_warehouse_id,''))) AS destinationWarehouseId," +
+        "COALESCE(NULLIF(o.transfer_warehouse_code,''),MIN(NULLIF(d.destination_warehouse_code,''))) AS destinationWarehouseCode," +
+        "COALESCE(NULLIF(o.transfer_warehouse_name,''),MIN(NULLIF(d.destination_warehouse_name,''))) AS destinationWarehouseName," +
+        "COUNT(DISTINCT COALESCE(NULLIF(d.destination_warehouse_id,''),NULLIF(d.destination_warehouse_code,''),'#EMPTY#')) AS destinationCount," +
+        "SUM(CASE WHEN d.id IS NOT NULL " +
+        "AND COALESCE(NULLIF(o.transfer_warehouse_id,''),NULLIF(o.transfer_warehouse_code,'')) IS NOT NULL " +
+        "AND COALESCE(NULLIF(d.destination_warehouse_id,''),NULLIF(d.destination_warehouse_code,''),'#EMPTY#') " +
+        "<> COALESCE(NULLIF(o.transfer_warehouse_id,''),NULLIF(o.transfer_warehouse_code,'')) THEN 1 ELSE 0 END) " +
+        "AS destinationMismatchCount " +
+        "FROM ll_order o LEFT JOIN ll_order_detail d ON d.order_id=o.id " +
+        "WHERE o.customer_id=#{customerId} AND o.container_no=#{containerNo} " +
+        "GROUP BY o.id,o.customer_id,o.container_no,o.inbound_code,o.current_status,o.inbound_order_no,o.volume_cbm,o.package_count,o.fba_warehouse_code," +
+        "o.transfer_warehouse_id,o.transfer_warehouse_code,o.transfer_warehouse_name " +
+        "ORDER BY o.id FOR UPDATE")
+    List<SourceOrderSnapshot> lockContainerOrders(@Param("customerId") String customerId,
+                                                   @Param("containerNo") String containerNo);
+
+    @Update("UPDATE ll_order SET inbound_order_no=#{planNo},current_status='INBOUND_PLANNED'," +
+        "pallet_merge_flag='MERGED',pallet_count=#{palletCount},updated_at=#{updatedAt} " +
+        "WHERE customer_id=#{customerId} AND id=#{orderId}")
+    int markPlanned(@Param("customerId") String customerId, @Param("orderId") Long orderId,
+                    @Param("planNo") String planNo, @Param("palletCount") int palletCount,
+                    @Param("updatedAt") LocalDateTime updatedAt);
+
+    @Insert("INSERT INTO ll_loading_order_status_history(order_id,from_status,to_status,remark,created_at) " +
+        "VALUES(#{orderId},#{fromStatus},'INBOUND_PLANNED',#{remark},#{createdAt})")
+    int insertHistory(@Param("orderId") Long orderId, @Param("fromStatus") String fromStatus,
+                      @Param("remark") String remark, @Param("createdAt") LocalDateTime createdAt);
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundPlanPalletAllocationMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanPalletAllocation;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface InboundPlanPalletAllocationMapper extends BaseMapper<InboundPlanPalletAllocation> {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundPlanPalletMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanPallet;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface InboundPlanPalletMapper extends BaseMapper<InboundPlanPallet> {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/model/FbaAppointmentLineSnapshot.java

@@ -0,0 +1,10 @@
+package com.baiyue.lastleg.inboundplan.model;
+
+public record FbaAppointmentLineSnapshot(
+    Long lineId,
+    Long planId,
+    Long orderId,
+    String inboundCode,
+    String fbaWarehouseCode
+) {
+}

lastleg-service/src/main/java/com/baiyue/lastleg/inboundplan/model/FbaAppointmentStatus.java

@@ -0,0 +1,8 @@
+package com.baiyue.lastleg.inboundplan.model;
+
+public enum FbaAppointmentStatus {
+    PENDING,
+    SUCCESS,
+    FAILED,
+    CANCELLED
+}