perf(startup): reduce readiness work (#6341)

app/startup/routers_initializer.py

@@ -7,11 +7,16 @@ def init_routers(app: FastAPI):
     """
     初始化路由
     """
-    from app.api.apiv1 import api_router
+    from app.api.router_specs import API_V1_ROUTER_SPECS
     from app.api.servarr import arr_router
     from app.api.servcookie import cookie_router
-    # API路由
-    app.include_router(api_router, prefix=settings.API_V1_STR)
+    # 直接聚合端点路由，避免先构建兼容路由器再克隆到最终应用。
+    for spec in API_V1_ROUTER_SPECS:
+        app.include_router(
+            spec.router,
+            prefix=f"{settings.API_V1_STR}{spec.prefix}",
+            tags=list(spec.tags),
+        )
     # Radarr、Sonarr路由
     app.include_router(arr_router, prefix="/api/v3")
     # CookieCloud路由