fix

web_viewer/app.py

@@ -74,8 +74,11 @@ app = FastAPI(
     lifespan=lifespan
 )
 
-# Mount static files
-app.mount("/static", StaticFiles(directory="static"), name="static")
+# Mount static files if directory exists
+if os.path.exists("static"):
+    app.mount("/static", StaticFiles(directory="static"), name="static")
+else:
+    print("Warning: 'static' directory not found, static files will not be served")
 
 # Templates
 templates = Jinja2Templates(directory="templates")