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>

docs/TEST_REPORT/ECR-017.md

@@ -0,0 +1,31 @@
+# TEST_REPORT — ECR-017 AskOperations
+
+Date: 2026-08-07 · Loop continuous · commit: (pending)
+
+## Commands
+
+```bash
+cd apps/api && go test ./internal/integration/ -run TestAskOperations -count=1
+npm run build:admin
+python3 scripts/ess-validate.py --phase review --ecr ECR-017
+python3 scripts/ess-gate-check.py --ecr ECR-017
+```
+
+## Results
+
+| Check | Result |
+|-------|--------|
+| TestAskOperations | PASS |
+| build:admin | PASS |
+| ess-validate review | PASS |
+
+## AC
+
+| ID | Evidence |
+|----|----------|
+| AC-F-01 | list 含 thread · message_count≥1 |
+| AC-F-02 | detail ≥2 messages |
+| AC-S-01 | 无 token → 401 |
+| AC-S-02 | 仅 users.read → 403 |
+| AC-P-01 | list < 500ms |
+| AC-O-01 | N/A 只读 |