feat(ECR-016): UserIntelligence 用户洞察只读切片并 Closed

聚合 GET /admin/users/:id/insight（报告类型/派生标签/行为快照），admin-h5 洞察 Tab；无 migration / 无 UGC / 无真支付。

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

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

@@ -31,7 +31,17 @@ async function request<T>(method: string, path: string, body?: unknown): Promise
     headers,
     body: body === undefined ? undefined : JSON.stringify(body),
   })
-  const env = (await res.json()) as ApiEnvelope<T>
+  const text = await res.text()
+  let env: ApiEnvelope<T>
+  try {
+    env = JSON.parse(text) as ApiEnvelope<T>
+  } catch {
+    throw new Error(
+      res.status === 404
+        ? `接口不存在或后端未更新（${path}）`
+        : `响应不是 JSON（HTTP ${res.status}）`,
+    )
+  }
   if (!res.ok || env.code !== 0) {
     throw new Error(env.message || `HTTP ${res.status}`)
   }
@@ -130,6 +140,18 @@ export const adminApi = {
         created_at: string
       }>
     }>('GET', `/users/${id}/status-transitions`),
+  userInsight: (id: string) =>
+    request<{
+      user_id: string
+      profiles_count: number
+      reports_by_type: Array<{ type: string; count: number }>
+      recent_reports: Array<{ id: string; type: string; created_at: string }>
+      tags: Array<{ code: string; label: string }>
+      behavior: {
+        events: Array<{ name: string; page_path?: string; received_at: string }>
+        ask_thread_count: number
+      }
+    }>('GET', `/users/${id}/insight`),
   grant: (id: string, plan: string) =>
     request<{ ok: boolean }>('POST', `/users/${id}/membership/grant`, { plan }),
   grantAskQuota: (id: string, delta: number) =>