feat: close overseas wallet and pallet cost flow

warehouse/src/main/java/com/baiyue/warehouse/controller/PlatformPalletController.java

@@ -50,6 +50,14 @@ public class PlatformPalletController {
         return ApiResponse.success(service.page(0L, query));
     }
 
+    @GetMapping("/summary")
+    @PreAuthorize("hasAuthority('platform:pallet:list')")
+    public ApiResponse<PalletRequests.Summary> summary(@AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) @Min(0) Long tenantId, @Valid @ParameterObject PalletRequests.PageQuery query) {
+        requirePlatform(user); requirePlatformScope(tenantId);
+        return ApiResponse.success(service.summary(0L, query));
+    }
+
     @GetMapping("/{id}")
     @PreAuthorize("hasAuthority('platform:pallet:list')")
     @Operation(summary = "查询托盘详情")

warehouse/src/main/java/com/baiyue/warehouse/dto/PalletRequests.java

@@ -75,6 +75,8 @@ public final class PalletRequests {
     ) {
     }
 
+    public record Summary(long totalCount, long idleCount, long occupiedCount) { }
+
     @Schema(name = "InternalPalletSnapshot", description = "内部只读托盘主数据快照；不包含动态资源状态")
     public record Snapshot(
         @Schema(description = "托盘ID") long palletId,

warehouse/src/main/java/com/baiyue/warehouse/service/PalletApplicationService.java

@@ -9,6 +9,7 @@ import com.baiyue.warehouse.entity.PalletEntity;
 import com.baiyue.warehouse.repository.PalletRepository;
 import com.baiyue.warehouse.repository.WarehouseRepository;
 import jakarta.annotation.Resource;
+import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -18,6 +19,7 @@ import java.util.List;
 /** 托盘主数据应用服务。 */
 @Service
 public class PalletApplicationService {
+    @Resource private JdbcTemplate jdbc;
     private static final int CODE_INSERT_ATTEMPTS = 5;
 
     @Resource
@@ -31,6 +33,19 @@ public class PalletApplicationService {
             source.page(), source.size(), source.total(), source.pages());
     }
 
+    public PalletRequests.Summary summary(long tenantId, PalletRequests.PageQuery query) {
+        StringBuilder where = new StringBuilder("p.tenant_id=? AND p.deleted=0");
+        java.util.List<Object> args = new java.util.ArrayList<>(); args.add(tenantId);
+        if (query.warehouseId() != null) { where.append(" AND p.warehouse_id=?"); args.add(query.warehouseId()); }
+        if (org.springframework.util.StringUtils.hasText(query.palletCode())) { where.append(" AND p.pallet_code LIKE ?"); args.add("%" + query.palletCode().trim() + "%"); }
+        if (org.springframework.util.StringUtils.hasText(query.palletType())) { where.append(" AND p.pallet_type=?"); args.add(query.palletType().trim()); }
+        String active = "EXISTS (SELECT 1 FROM wh_location_reservation r WHERE r.tenant_id=p.tenant_id AND r.warehouse_id=p.warehouse_id AND r.pallet_id=p.id AND r.reservation_status='RESERVED') OR EXISTS (SELECT 1 FROM wh_location_occupancy o WHERE o.tenant_id=p.tenant_id AND o.warehouse_id=p.warehouse_id AND o.pallet_id=p.id AND o.occupancy_status='OCCUPIED')";
+        java.util.Map<String,Object> row = jdbc.queryForMap("SELECT COUNT(*) total_count,SUM(CASE WHEN " + active + " THEN 1 ELSE 0 END) occupied_count FROM wh_pallet p WHERE " + where, args.toArray());
+        long total = ((Number) row.get("total_count")).longValue();
+        long occupied = row.get("occupied_count") == null ? 0 : ((Number) row.get("occupied_count")).longValue();
+        return new PalletRequests.Summary(total, total - occupied, occupied);
+    }
+
     public PalletRequests.View detail(long tenantId, long warehouseId, long id) {
         return view(owned(tenantId, warehouseId, id));
     }

warehouse/src/test/java/com/baiyue/warehouse/service/PalletApplicationServiceTest.java

@@ -11,6 +11,7 @@ import org.junit.jupiter.api.Test;
 import jakarta.annotation.Resource;
 import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+import org.springframework.jdbc.core.JdbcTemplate;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.Mockito.mock;
@@ -24,8 +25,18 @@ import java.util.List;
 class PalletApplicationServiceTest {
     @MockBean private PalletRepository repository;
     @MockBean private WarehouseRepository warehouseRepository;
+    @MockBean private JdbcTemplate jdbcTemplate;
     @Resource private PalletApplicationService service;
 
+    @Test
+    void summarizesIdleAndOccupiedPallets() {
+        PalletRequests.PageQuery query = new PalletRequests.PageQuery(1, 20, 20L, "PLT", "木托盘");
+        when(jdbcTemplate.queryForMap(org.mockito.ArgumentMatchers.anyString(), org.mockito.ArgumentMatchers.any(Object[].class)))
+            .thenReturn(java.util.Map.of("total_count", 7L, "occupied_count", 3L));
+        org.assertj.core.api.Assertions.assertThat(service.summary(0, query))
+            .extracting("totalCount", "idleCount", "occupiedCount").containsExactly(7L, 4L, 3L);
+    }
+
     @Test
     void shouldHandleCase01() {
         PalletEntity entity = pallet();