feat(admin-web): show centered modal in Chinese when AI points are insufficient

- Add `ai_points_insufficient` / `ai_points_unavailable` Chinese mappings in
  errors.ts so the toast copy is localized.
- Add `showAiPointsInsufficientModal()` helper that renders a centered
  `Modal.confirm` with localized title/body and a "查看点数明细" action that
  routes to `/account/ai-points`. The helper is debounced so concurrent
  failed requests do not stack multiple modals.
- Trigger the modal globally from the admin-web response interceptor when
  the backend returns `ai_points_insufficient`, so every AI-generating
  endpoint surfaces the same prominent prompt without per-callsite changes.
- Drop the English `detail` for ai_points_insufficient in `formatError` so
  the secondary toast stays pure Chinese.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/lib/api.ts

@@ -315,6 +315,12 @@ apiClient.raw.interceptors.response.use(
       markStoredMembershipBlocked(error.message)
     }
 
+    if (error instanceof ApiClientError && error.message === 'ai_points_insufficient') {
+      void import('./errors').then(({ showAiPointsInsufficientModal }) => {
+        showAiPointsInsufficientModal()
+      })
+    }
+
     return Promise.reject(error)
   },
 )

apps/admin-web/src/lib/errors.ts

@@ -1,5 +1,8 @@
+import { Modal } from 'ant-design-vue'
 import { ApiClientError } from '@geo/http-client'
 
+import { router } from '@/router'
+
 const authSessionErrorMessages = new Set([
   'not_authenticated',
   'missing_bearer_token',
@@ -28,6 +31,8 @@ const errorMessageMap: Record<string, string> = {
   tenant_scope_missing: '租户上下文缺失',
   query_failed: '数据读取失败',
   quota_insufficient: '生成额度不足',
+  ai_points_insufficient: 'AI 点数余额不足',
+  ai_points_unavailable: 'AI 点数服务暂不可用，请稍后重试',
   trial_plan_expired: '免费试用已到期，请联系管理员开通',
   subscription_required: '当前租户尚未开通有效套餐，请联系管理员',
   subscription_inactive: '当前租户套餐已失效，请联系管理员',
@@ -89,6 +94,34 @@ const errorMessageMap: Record<string, string> = {
   unknown_error: '发生未知错误',
 }
 
+export function isAiPointsInsufficient(error: unknown): boolean {
+  return error instanceof ApiClientError && error.message === 'ai_points_insufficient'
+}
+
+let aiPointsModalVisible = false
+
+export function showAiPointsInsufficientModal(): void {
+  if (aiPointsModalVisible) {
+    return
+  }
+  aiPointsModalVisible = true
+
+  Modal.confirm({
+    title: 'AI 点数不足',
+    content: '当前账号的 AI 点数余额已耗尽，无法继续生成内容。请升级套餐或等待下月点数重置。',
+    okText: '查看点数明细',
+    cancelText: '我知道了',
+    centered: true,
+    okButtonProps: { type: 'primary' },
+    onOk: () => {
+      void router.push('/account/ai-points')
+    },
+    afterClose: () => {
+      aiPointsModalVisible = false
+    },
+  })
+}
+
 export function isHandledAuthError(error: unknown): boolean {
   return (
     error instanceof ApiClientError &&
@@ -104,6 +137,9 @@ export function formatError(error: unknown): string {
 
   if (error instanceof ApiClientError) {
     const message = errorMessageMap[error.message] ?? error.message.replaceAll('_', ' ')
+    if (isAiPointsInsufficient(error)) {
+      return message
+    }
     return error.detail ? `${message}: ${error.detail}` : message
   }