Update forge-3d from local forge-bricks (with vendored common)

app.py

@@ -129,7 +129,7 @@ def generate_3d(
 
 
 def build_ui():
-    with gr.Blocks(title="Forge-3D", mcp_server=True) as demo:
+    with gr.Blocks(title="Forge-3D") as demo:
         gr.Markdown("# 🧊 Forge-3D (image/text → 3D + previews + analysis hooks)\nRobust (health + adapters + local first). Pairs with forge-visuals for full bidir.")
         with gr.Row():
             img = gr.Image(label="Input image (or concept)", type="filepath")
@@ -146,6 +146,11 @@ def build_ui():
     return demo
 
 
+# Build at module level so that `demo` (and `gradio_app`) exist when the module is imported
+# (required for Hugging Face Spaces and for agent/MCP discovery).
+demo = build_ui()
+gradio_app = demo  # alias for compatibility with tools/skills that expect `gradio_app`
+
 if __name__ == "__main__":
     health.start([TRIPOSG, HUNYUAN])
-    build_ui().launch(server_name="0.0.0.0", server_port=int(os.environ.get("PORT", 7861)))
+    demo.launch(server_name="0.0.0.0", server_port=int(os.environ.get("PORT", 7861)), mcp_server=True)