feat(appointments): support scoped receiving and stable trip continuation

deploy/sql/reset-test-fba-appointments.sql

@@ -10,7 +10,8 @@ CREATE PROCEDURE assert_test_appointment_reset_preconditions()
 BEGIN
   IF EXISTS(SELECT 1 FROM information_schema.tables WHERE table_schema=DATABASE()
       AND table_name IN ('ll_fba_appointment_command','ll_appointment_cargo_verification',
-        'll_appointment_work','ll_dispatch_appointment_allocation')) THEN
+        'll_appointment_work','ll_dispatch_appointment_allocation','ll_fba_receiving_agreement',
+        'll_fba_receiving_member','ll_fba_receiving_change','ll_fba_receiving_revision','ll_fba_receiving_plan')) THEN
     SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT='Stop: appointment history or work/allocation schema already exists; inspect before any reset';
   END IF;
   IF (SELECT COUNT(*) FROM information_schema.tables WHERE table_schema=DATABASE()
@@ -49,7 +50,6 @@ CREATE TABLE ll_inbound_fba_appointment (
   updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '更新UTC时间',
   PRIMARY KEY (id),
   UNIQUE KEY uk_ll_fba_appointment_no (appointment_no),
-  UNIQUE KEY uk_ll_fba_external_confirmation (fba_warehouse_code,confirmation_no),
   KEY idx_ll_fba_appointment_list (appointment_at,appointment_status,fba_warehouse_code),
   KEY idx_ll_fba_appointment_planned (planned_at,appointment_status)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='FBA预约安排与正式确认唯一主记录';
@@ -66,7 +66,7 @@ CREATE TABLE ll_inbound_fba_appointment_item (
   package_count INT NULL COMMENT '本批分配箱数，未知保持空；同一原来源总量守恒',
   cargo_verification_version INT NULL COMMENT '采用的预约货物核实版本，未核实时为空',
   shipment_references_json LONGTEXT NULL COMMENT '本次采用的货件或追踪号核实快照',
-  active TINYINT(1) NOT NULL DEFAULT 1 COMMENT '取消或失败后释放货源占用',
+  active TINYINT(1) NOT NULL DEFAULT 1 COMMENT '当前批次数量分配有效；取消、未约成和完成均保留，仅替代时释放',
   created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建UTC时间',
   PRIMARY KEY (id),
   UNIQUE KEY uk_ll_fba_item_source (appointment_id,source_key),