Fix static serving erro

Dockerfile

@@ -51,6 +51,9 @@ RUN uv sync
 # Copy built frontend from previous stage with proper ownership
 COPY --chown=user --from=frontend-builder /app/build $HOME/app/static-frontend
 
+# Copy static assets (robot URDF files, meshes, etc.)
+COPY --chown=user static/ $HOME/app/static/
+
 # Set working directory back to app root
 WORKDIR $HOME/app
 

src-python/src/main.py

@@ -87,6 +87,45 @@ if static_dir:
 else:
     logger.warning(f"⚠️ Static directory not found in any of: {static_dir_candidates}")
 
+# Mount robot assets (URDF files, meshes, etc.)
+robot_assets_candidates = [
+    os.path.join(
+        os.path.dirname(os.path.dirname(__file__)), "..", "..", "static"
+    ),  # From src-python/src
+    os.path.join(
+        os.path.dirname(os.path.dirname(os.path.dirname(__file__))), "static"
+    ),  # From src-python
+    "/home/user/app/static",  # HF Spaces absolute path
+    "static",  # Relative to working directory
+]
+
+robot_assets_dir = None
+for candidate in robot_assets_candidates:
+    if os.path.exists(candidate):
+        robot_assets_dir = candidate
+        break
+
+if robot_assets_dir:
+    app.mount(
+        "/robots",
+        StaticFiles(directory=os.path.join(robot_assets_dir, "robots")),
+        name="robots",
+    )
+
+    # Mount individual favicon file properly
+    @app.get("/favicon.png")
+    async def get_favicon():
+        favicon_path = os.path.join(robot_assets_dir, "favicon.png")
+        if os.path.exists(favicon_path):
+            return FileResponse(favicon_path)
+        raise HTTPException(status_code=404, detail="Favicon not found")
+
+    logger.info(f"🤖 Serving robot assets from: {robot_assets_dir}")
+else:
+    logger.warning(
+        f"⚠️ Robot assets directory not found in any of: {robot_assets_candidates}"
+    )
+
 
 def get_static_dir() -> str | None:
     """Get the static directory path"""
@@ -164,8 +203,8 @@ async def serve_app_assets(path: str):
 @app.get("/{path:path}")
 async def serve_spa_fallback(path: str):
     """Serve the frontend for client-side routing"""
-    # If it's an API or WebSocket path, let it pass through to other handlers
-    if path.startswith(("api/", "ws/")):
+    # If it's an API, WebSocket, or static asset path, let it pass through to other handlers
+    if path.startswith(("api/", "ws/", "robots/", "_app/", "static/", "favicon")):
         raise HTTPException(status_code=404, detail="Not found")
 
     # For all other paths, serve the index.html (SPA)