feat(监控): 完善系统监控、登录状态与访问审计能力

backend/tests/test_registration.py

@@ -12,6 +12,7 @@ from datetime import datetime, timedelta, timezone
 import base64
 import json
 import os
+import uuid
 
 from app.main import create_app
 from app.core.config import settings
@@ -397,6 +398,7 @@ async def test_root_returns_service_metadata(client_and_db):
     client, _ = client_and_db
     resp = await client.get("/")
     assert resp.status_code == 200
+    assert uuid.UUID(resp.headers["x-request-id"])
     assert resp.json() == {
         "service": "ctms-backend",
         "status": "ok",
@@ -406,6 +408,17 @@ async def test_root_returns_service_metadata(client_and_db):
     }
 
 
+@pytest.mark.asyncio
+async def test_readiness_checks_database(client_and_db):
+    client, _ = client_and_db
+    resp = await client.get("/readyz")
+    assert resp.status_code == 200
+    payload = resp.json()
+    assert payload["status"] == "ready"
+    assert payload["database"]["status"] == "healthy"
+    assert payload["database"]["latency_ms"] >= 0
+
+
 @pytest.mark.asyncio
 async def test_registered_user_can_login_after_email_verification(client_and_db):
     client, SessionLocal = client_and_db