feat(pl): hard-block over-limit contract qty on arrange and remind after success

Validate arranged+this plan qty against fixed contract product quantities on
transport arrange; return post-success remaining/framework cumulative reminders.

Co-authored-by: Cursor <cursoragent@cursor.com>

web-admin/src/api/pl/index.ts

@@ -629,6 +629,8 @@ export interface PlanQuery {
   certUploadStatus?: string
   /** 0=未确认齐备 1=已确认齐备 */
   hazardCertReady?: number
+  /** CRM 合同 ID：仅返回关联该合同的计划 */
+  contractId?: string
   page?: number
   pageSize?: number
 }
@@ -1099,6 +1101,25 @@ export interface TransportArrangeResult extends Transport {
   siteRecords?: TransportSiteLink[]
   inventoryRecords?: TransportInventoryLink[]
   ioOrder?: TransportIoOrderBrief
+  contractQtyReminder?: ContractQtyReminder
+}
+
+export interface ContractQtyReminderItem {
+  contractId: string
+  contractNo?: string
+  contractType?: string
+  stopKind: string
+  productId: string
+  productName?: string
+  mode: 'remaining' | 'framework_cumulative' | string
+  contractQty?: number
+  arrangedTotalQty: number
+  remainingQty?: number
+  thisPlanQty: number
+}
+
+export interface ContractQtyReminder {
+  items: ContractQtyReminderItem[]
 }
 
 export interface PlIoOrderItem {