first complete version

app.py

@@ -698,7 +698,7 @@ button.add-agent-btn:hover {
 # ---------------------------------------------------------------------------
 
 def create_ui():
-    with gr.Blocks(theme=gr.themes.Soft(), css=APP_CSS) as app:
+    with gr.Blocks() as app:
 
         # Load Inter font via a <link> tag — @import is forbidden in Gradio 6
         # Constructable Stylesheets and would break all event listeners.
@@ -1679,4 +1679,4 @@ def create_ui():
 
 if __name__ == "__main__":
     app = create_ui()
-    app.launch()
+    app.launch(theme=gr.themes.Soft(), css=APP_CSS)

requirements.txt

@@ -1,6 +1,6 @@
 mlcroissant>=1.0.17
 pydantic>=2.10.6
-gradio>=3.50.2
+gradio>=6.0.0,<7.0.0
 func_timeout
 requests
 huggingface-hub>=0.30.1