feat: 增加结构化日志和服务就绪检查

ai_knowledge_base_v2/apps/backend/tests/test_production_readiness.py

@@ -5,7 +5,9 @@ import asyncio
 import json
 
 import pytest
+import httpx
 from fastapi import HTTPException
+from fastapi import FastAPI
 from sqlalchemy import create_engine
 from sqlalchemy.orm import Session
 from sqlalchemy.pool import StaticPool
@@ -19,6 +21,7 @@ from app.services.chat_queue_service import ChatQueueConfig, QueueRequest
 from app.services.chat_service import ChatService
 from app.services.secret_service import ENCRYPTED_PREFIX, MASKED_SECRET, SecretService
 from app.services.security_state_service import SecurityStateService
+from app.core.observability import RequestObservabilityMiddleware
 
 
 @pytest.fixture(autouse=True)
@@ -113,3 +116,32 @@ def test_sensitive_system_config_never_returns_plaintext():
     config = SystemConfig(config_key="feishu_app_secret", config_value="plain-secret")
     result = _config_dict(config)
     assert result["configValue"] == MASKED_SECRET
+
+
+def test_request_id_is_returned_without_breaking_response():
+    app = FastAPI()
+    app.add_middleware(RequestObservabilityMiddleware)
+
+    @app.get("/test")
+    def endpoint():
+        return {"ok": True}
+
+    async def make_request():
+        transport = httpx.ASGITransport(app=app)
+        async with httpx.AsyncClient(transport=transport, base_url="http://test") as client:
+            return await client.get("/test", headers={"X-Request-ID": "trace-123"})
+
+    response = asyncio.run(make_request())
+    assert response.status_code == 200
+    assert response.headers["X-Request-ID"] == "trace-123"
+    assert response.json() == {"ok": True}
+
+
+def test_readiness_reports_dependency_state(monkeypatch):
+    from app.api import health
+
+    monkeypatch.setattr(health, "_database_ready", lambda: True)
+    monkeypatch.setattr(health, "_redis_ready", lambda: True)
+    result = health.ready()
+    assert result["data"]["status"] == "ready"
+    assert result["data"]["checks"] == {"database": True, "redis": True}