Move theme to launch(), disable SSR to silence asyncio noise

app.py

@@ -189,7 +189,7 @@ def run_inference(
 # ── UI ─────────────────────────────────────────────────────────────────────────
 
 def build_ui():
-    with gr.Blocks(title="PanCancerSeg Inference", theme=gr.themes.Soft()) as demo:
+    with gr.Blocks(title="PanCancerSeg Inference") as demo:
         gr.Markdown(
             """
 # PanCancerSeg — Specialist CT Tumour Segmentation
@@ -266,4 +266,10 @@ if __name__ == "__main__":
     # Hugging Face Spaces expect the app on port 7860 (set via GRADIO_SERVER_PORT).
     # Locally this falls back to 7860 unless overridden.
     port = int(os.environ.get("GRADIO_SERVER_PORT", 7860))
-    demo.launch(server_name="0.0.0.0", server_port=port, share=False)
+    demo.launch(
+        server_name="0.0.0.0",
+        server_port=port,
+        share=False,
+        theme=gr.themes.Soft(),
+        ssr_mode=False,
+    )