改为自动周期采集并优化首页导航

app/main.py

@@ -17,8 +17,12 @@ from app.core.log_setup import configure_logging  # noqa: E402
 
 @asynccontextmanager
 async def lifespan(app: FastAPI) -> AsyncIterator[None]:
-    # The scheduler lives with the web process for the demo deployment profile.
+    # 测试环境不启动后台采集，避免接口测试触发真实外部请求。
     settings = get_settings()
+    if settings.env == "test":
+        yield
+        return
+    # 调度器随Web进程常驻，负责自动周期性整理情报。
     scheduler = build_scheduler(settings)
     scheduler.start()
     app.state.scheduler = scheduler