接入 ESLint 并清理未使用代码

- 前后端接入 ESLint 10 扁平配置（typescript-eslint 类型感知检查 + react-hooks/react-refresh），新增 lint / lint:check / lint:fix 脚本并纳入 check 链路
- 清理全部 no-unused-vars 与 no-useless-assignment 警告，修复 floating promises、正则转义等问题
- 删除确认无引用的死代码（markKuaishouCloudBindUrlRefreshFailed、未使用 helper 等）

apps/frontend/src/pages/admin/platform/AdminPlatformFulfillmentPage.tsx

@@ -1368,7 +1368,7 @@ function resolveDefaultSourceKey(sourceRows: SourceRow[], selectedSourceKey: str
 function normalizeMatchName(value: unknown) {
   return String(value || '')
     .toLowerCase()
-    .replace(/[【】\[\]（）()]/g, ' ')
+    .replace(/[【】[\]（）()]/g, ' ')
     .replace(/(自动发货|秒发|极速发货|官方直充|官方充值)/gi, ' ')
     .replace(/[^\p{L}\p{N}]+/gu, ' ')
     .replace(/\s+/g, ' ')

apps/frontend/src/pages/admin/platform/AdminPlatformShopsPage.tsx

@@ -17,7 +17,6 @@ import {
   Input,
   InputNumber,
   Popconfirm,
-  Select,
   Space,
   Spin,
   Switch,
@@ -134,7 +133,7 @@ export default function AdminPlatformShopsPage() {
   const [feifeiConfig, setFeifeiConfig] = useState<AdminKuaishouFeifeiConfigResponse | null>(null)
   const [cloudtentaclesConfig, setCloudtentaclesConfig] =
     useState<AdminCloudtentaclesSourceConfigResponse | null>(null)
-  const [affiliateDashConfig, setAffiliateDashConfig] =
+  const [_affiliateDashConfig, setAffiliateDashConfig] =
     useState<AdminAffiliateDashConfigResponse | null>(null)
 
   useEffect(() => {
@@ -2930,7 +2929,9 @@ function AffiliateDashPlatformPanel() {
                   current: productPage,
                   pageSize: 20,
                   total: productTotal,
-                  onChange: (page) => loadProducts(page),
+                  onChange: (page) => {
+                    void loadProducts(page)
+                  },
                 })}
               />
             </Space>