feat: 移除仓库内 nginx 并拆分前端运行时

backend/app/main.py

@@ -166,6 +166,21 @@ def create_app() -> FastAPI:
 
     register_exception_handlers(app)
 
+    @app.get(
+        "/",
+        tags=["health"],
+        summary="服务入口说明",
+        description="返回后端服务入口说明，避免将根路径误认为前端页面。",
+    )
+    async def root() -> dict[str, str]:
+        return {
+            "service": "ctms-backend",
+            "status": "ok",
+            "health": "/health",
+            "docs": "/docs",
+            "api": "/api/v1",
+        }
+
     @app.get(
         "/health",
         tags=["health"],

backend/tests/test_registration.py

@@ -62,6 +62,20 @@ async def test_register_creates_pending_user(client_and_db):
         assert user.status == UserStatus.PENDING
 
 
+@pytest.mark.asyncio
+async def test_root_returns_service_metadata(client_and_db):
+    client, _ = client_and_db
+    resp = await client.get("/")
+    assert resp.status_code == 200
+    assert resp.json() == {
+        "service": "ctms-backend",
+        "status": "ok",
+        "health": "/health",
+        "docs": "/docs",
+        "api": "/api/v1",
+    }
+
+
 @pytest.mark.asyncio
 async def test_login_blocked_before_approval(client_and_db):
     client, SessionLocal = client_and_db