deploy bbuilder host

app.py

@@ -258,7 +258,7 @@ def status_text() -> str:
     )
 
 
-with gr.Blocks(title="bbuilder host", theme=gr.themes.Soft()) as demo:
+with gr.Blocks(title="bbuilder host") as demo:
     gr.Markdown("# bbuilder host\nHosting for Nerimity bots built with the bbuilder desktop app.")
     status_md = gr.Markdown(status_text())
     table = gr.Dataframe(
@@ -282,4 +282,8 @@ if __name__ == "__main__":
     BOTS_DIR.mkdir(parents=True, exist_ok=True)
     threading.Thread(target=bootstrap, daemon=True).start()
     threading.Thread(target=self_ping, daemon=True).start()
-    uvicorn.run(app, host="0.0.0.0", port=int(os.environ.get("PORT", 7860)))
+    # Gradio Spaces expose the app on GRADIO_SERVER_PORT (7860) and route the public domain
+    # there. Do NOT fall back to $PORT: HF sets it to something else in the container (7861,
+    # already bound), so trusting it makes the app fail to start with EADDRINUSE.
+    port = int(os.environ.get("GRADIO_SERVER_PORT") or 7860)
+    uvicorn.run(app, host="0.0.0.0", port=port)