feat(pl): show available contract qty before plan qty in stop products

Add contract-product-arrange-qty API and form UI with green available qty,
red plan qty over-hint, and click-through dialog for usage and plan list.

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

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

@@ -866,6 +866,29 @@ export interface PlanContractGapQuery {
   q?: string
 }
 
+export interface ContractProductArrangeQtyPlanItem {
+  planId: string
+  planNo?: string
+  planDate?: string | null
+  planQty: number
+  followStatus?: string
+  transportStatus?: string
+  archiveStatus?: string
+}
+
+export interface ContractProductArrangeQtyDetail {
+  contractId: string
+  contractNo?: string | null
+  customerName?: string | null
+  productId: string
+  productName?: string | null
+  hasFixedQty: boolean
+  contractQty?: number | null
+  arrangedQty: number
+  availableQty?: number | null
+  plans: ContractProductArrangeQtyPlanItem[]
+}
+
 export const planApi = {
   list: (params?: PlanQuery) => request.get<PlanListResponse>('/transport/plan/', { params }),
   export: (data: Record<string, any>) =>
@@ -875,6 +898,16 @@ export const planApi = {
     request.get<{ counts: Record<string, number> }>('/transport/plan/count-by-contract', {
       params: { contractIds: contractIds.join(',') }
     }),
+  /** 表单可安排数量 / 问号弹窗 */
+  getContractProductArrangeQty: (params: {
+    contractId: string
+    productId: string
+    excludePlanId?: string
+  }) =>
+    request.get<ContractProductArrangeQtyDetail>(
+      '/transport/plan/contract-product-arrange-qty',
+      { params }
+    ),
   create: (data: Partial<Plan>) => request.post<Plan>('/transport/plan/', data),
   createFull: (data: PlanCreateFullPayload) =>
     request.post<Plan>('/transport/plan/create-full', data),
@@ -1108,9 +1141,12 @@ export interface ContractQtyReminderItem {
   contractId: string
   contractNo?: string
   contractType?: string
+  customerName?: string
   stopKind: string
   productId: string
   productName?: string
+  model?: string
+  unit?: string
   mode: 'remaining' | 'framework_cumulative' | string
   contractQty?: number
   arrangedTotalQty: number