chore: silence asyncio logging and remove default greeting from chat interface

app.py

@@ -11,6 +11,11 @@ from transformers import AutoProcessor, MiniCPMV4_6ForConditionalGeneration, Tex
 from gradio import Server
 from gradio.data_classes import FileData
 from fastapi.responses import HTMLResponse
+import logging
+
+# Silence asyncio noise from ZeroGPU cleanup
+logging.getLogger("asyncio").setLevel(logging.CRITICAL)
+
 from starlette.middleware import Middleware
 import hashlib
 import base64

index.html

@@ -334,17 +334,6 @@
     <div id="tab-chat" class="tab-content active flex-col h-full">
         <main id="chat-messages" class="chat-scroll-area px-4 flex-1">
             <div class="max-w-3xl mx-auto space-y-8 pt-24 pb-40" id="chat-container">
-                <!-- Greeting -->
-                <div class="flex gap-4 items-start">
-                    <div class="bot-message p-6 message-bubble shadow-2xl">
-                        <p class="text-white/90 leading-relaxed text-[15px]">
-                            Welcome to <span class="font-bold text-[#27D4EA]">MiniCPM-V 4.6 Premium</span>. 
-                            I've been upgraded with <span class="text-white font-bold">Thinking Mode</span> and <span class="text-white font-bold">Multimodal Streaming</span>.
-                            <br><br>
-                            Upload multiple images or a video to see me in action.
-                        </p>
-                    </div>
-                </div>
             </div>
         </main>