Fix build error

app.py

@@ -246,7 +246,18 @@ def _choose_server_port(preferred: int = 7860, attempts: int = 10) -> int:
     )
 
 
+def _launch_app(server_port: int) -> None:
+    demo.launch(
+        _app=app,
+        server_name="0.0.0.0",
+        server_port=server_port,
+        # This app serves its own frontend and uses Gradio for the API layer only.
+        # SSR adds a Node proxy that is unnecessary here and has been noisy in Spaces.
+        ssr_mode=False,
+    )
+
+
 if __name__ == "__main__":
     server_port = _choose_server_port()
     print(f"Starting {APP_TITLE} on port {server_port}")
-    demo.launch(_app=app, server_name="0.0.0.0", server_port=server_port)
+    _launch_app(server_port)

tests/test_app_startup.py

@@ -13,3 +13,21 @@ def test_app_module_exposes_top_level_server_demo() -> None:
     assert hasattr(module, "demo")
     assert isinstance(module.demo, gr.Blocks)
     assert module.demo.mode == "server"
+
+
+def test_launch_app_disables_ssr_for_custom_server_mode(monkeypatch) -> None:
+    sys.modules.pop("app", None)
+    module = importlib.import_module("app")
+    captured = {}
+
+    def fake_launch(**kwargs):
+        captured.update(kwargs)
+
+    monkeypatch.setattr(module.demo, "launch", fake_launch)
+
+    module._launch_app(7860)
+
+    assert captured["server_name"] == "0.0.0.0"
+    assert captured["server_port"] == 7860
+    assert captured["ssr_mode"] is False
+    assert captured["_app"] is module.app