update app.py

app.py

@@ -1,7 +1,13 @@
 import gradio as gr
 
-def greet(name):
-    return "Hello " + name + "!!"
+def hello(name: str) -> str:
+    return f"Hello, {name}! ✅ Space is live."
 
-demo = gr.Interface(fn=greet, inputs="text", outputs="text")
-demo.launch()
+# IMPORTANT: don't call launch(); Spaces serve the `app` object
+app = gr.Interface(
+    fn=hello,
+    inputs=gr.Textbox(label="Your name"),
+    outputs=gr.Textbox(label="Response"),
+    title="HoloCine UI (Minimal)",
+    description="Minimal Gradio app for HF Spaces (no launch())."
+)