feat(ECR-017): AskOperations 问答会话只读并 Closed

新增 admin.ask.read、GET /admin/ask/threads*（AskSessionView）与 admin-h5「问答」页；禁改消息/UGC/真支付。

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

apps/admin-h5/src/api/client.ts

@@ -196,6 +196,31 @@ export const adminApi = {
       `/redemption-batches/${batchId}/codes`,
     ),
   disableRedemptionCode: (id: string) => request<{ ok: boolean }>('POST', `/redemption-codes/${id}/disable`),
+  askThreads: (userId = '') => {
+    const q = userId ? `?user_id=${encodeURIComponent(userId)}` : ''
+    return request<{
+      items: Array<{
+        id: string
+        user_id: string
+        profile_id: string
+        scene?: string
+        message_count: number
+        created_at: string
+        updated_at: string
+      }>
+    }>('GET', `/ask/threads${q}`)
+  },
+  askThread: (id: string) =>
+    request<{
+      id: string
+      user_id: string
+      profile_id: string
+      scene?: string
+      message_count: number
+      created_at: string
+      updated_at: string
+      messages: Array<{ id: string; role: string; content: string; created_at: string }>
+    }>('GET', `/ask/threads/${id}`),
   orders: () =>
     request<{
       items: Array<{