feat(ops,store,partner): 用户权益列 + 门店合同多图上传

- admin 用户列表新增剩余/已用/累计好客权益金额三列（benefitCoupon groupBy 聚合，排除 VOID）
- admin/partner 门店入驻合同支持多张照片与 PDF（CommonResource 多记录，复用 ENV 多图逻辑）
- 新增 contract-urls.util 归一化工具，向后兼容旧 contractUrl 字段并标记 deprecated

需求1/2/3

apps/h5-partner/src/pages/StoreCreatePage.tsx

@@ -43,6 +43,8 @@ import {
   validateStoreStep3,
 
   MIN_ENV_PHOTO_COUNT,
+
+  MAX_CONTRACT_COUNT,
 } from '../lib/storeDraft';
 import StorePackagesForm from '../components/StorePackagesForm';
 import { normalizePackageFormItems, validatePackageFormItems } from '../lib/storePackages';
@@ -476,7 +478,11 @@ export default function StoreCreatePage() {
 
       const envPhotoUrls = Array.from(
         new Set(form.envPhotoUrls.map((u) => u.trim()).filter(Boolean)),
-      ).slice(0, 3);
+      ).slice(0, 20);
+
+      const contractUrls = Array.from(
+        new Set((form.contractUrls ?? []).map((u) => u.trim()).filter(Boolean)),
+      ).slice(0, MAX_CONTRACT_COUNT);
 
       const result = await request<{ store: { id: string } }>('PARTNER_H5', '/partner/stores', {
 
@@ -526,7 +532,7 @@ export default function StoreCreatePage() {
 
           envPhotoUrls: envPhotoUrls.length ? envPhotoUrls : undefined,
 
-          contractUrl: form.contractUrl.trim() || undefined,
+          contractUrls: contractUrls.length ? contractUrls : undefined,
 
           bankAccountName: form.bankAccountName.trim(),
 
@@ -1013,9 +1019,11 @@ export default function StoreCreatePage() {
 
             <h3 className="headline-md">签约合同 <span className="text-primary">*</span></h3>
 
-            <p className="label-md text-muted" style={{ margin: '4px 0 12px' }}>拍照上传签约协议首页与盖章页</p>
+            <p className="label-md text-muted" style={{ margin: '4px 0 12px' }}>
+              拍照上传签约协议首页与盖章页，支持多张，最多 {MAX_CONTRACT_COUNT} 个
+            </p>
 
-            <OssUploadField
+            <MultiOssUploadField
 
               bizType="STORE_CONTRACT"
 
@@ -1023,11 +1031,15 @@ export default function StoreCreatePage() {
 
               accept="image/*,.pdf"
 
-              value={form.contractUrl}
+              unit="个"
 
-              onChange={(contractUrl) => patchForm({ contractUrl })}
+              maxCount={MAX_CONTRACT_COUNT}
 
-              label="上传合同副本"
+              value={form.contractUrls ?? []}
+
+              onChange={(urls) => patchForm({ contractUrls: urls })}
+
+              label={`批量上传合同（${(form.contractUrls ?? []).length}/${MAX_CONTRACT_COUNT}）`}
 
             />