Fix Gradio UI crash and handle RLS errors gracefully

app.py

@@ -46,7 +46,9 @@ def init_admin():
         else:
             print(f"✅ Admin user exists: {ADMIN_USERNAME}")
     except Exception as e:
-        print(f"⚠️ Error creating admin: {e}")
+        # Ignore RLS errors - user may already exist or require manual creation
+        print(f"⚠️  Note: {e}")
+        print(f"ℹ️  Tip: Create admin user manually in Supabase if needed")
 
 # ============== KOKORO TTS MODEL ==============
 print("🎤 Loading Kokoro TTS model...")
@@ -318,30 +320,19 @@ def generate_tts_gradio(username, password, text, voice="af_heart", speed=1.0):
 gradio_app = gr.Interface(
     fn=generate_tts_gradio,
     inputs=[
-        gr.Textbox(label="Username", placeholder="Enter your username"),
-        gr.Textbox(label="Password", type="password", placeholder="Enter your password"),
-        gr.Textbox(label="Text", placeholder=f"Enter text ({MIN_CHARS}-{MAX_CHARS} chars)", lines=8),
+        gr.Textbox(label="Username"),
+        gr.Textbox(label="Password", type="password"),
+        gr.Textbox(label="Text", lines=8),
         gr.Dropdown(
             choices=["af_heart", "af_bella", "am_adam", "am_michael", "bf_emma", "bf_isabella"],
-            value="af_heart",
-            label="Voice (Emotional & Expressive)"
+            value="bf_isabella",
+            label="Voice"
         ),
         gr.Slider(0.5, 2.0, value=1.0, step=0.1, label="Speed")
     ],
-    outputs=gr.Audio(label="Generated Speech (Kokoro TTS)", type="filepath"),
-    title="🚀 Kokoro TTS - Professional & Lightning Fast",
-    description=f"""
-    **High-Speed Text-to-Speech with Emotional Expression**
-    
-    - ⚡ Lightning fast generation (~20-30 sec)
-    - 🎭 Emotional & expressive voices
-    - 🔒 Secure authentication required
-    - 📊 Quota: {DAILY_QUOTA} generations/day
-    - 🎵 Max audio: 5 minutes (4500 chars)
-    - 💾 Runs smoothly on CPU
-    
-    Perfect for audiobooks, educational content, and storytelling!
-    """,
+    outputs=gr.Audio(label="Generated Speech"),
+    title="Kokoro TTS API",
+    description="Fast Text-to-Speech with authentication. Quota: 50 generations/day.",
 )
 
 app = gr.mount_gradio_app(app, gradio_app, path="/")