fix: Update emoji to 🧠 and add logo to Agent Chat avatar

- Change emoji from 🔍 to 🧠 to match UI branding
- Update Agent Chat avatar to use TraceMind logo instead of emoji
- Logo URL: https://raw.githubusercontent.com/Mandark-droid/TraceMind-AI/assets/Logo.png

README.md

@@ -1,6 +1,6 @@
 ---
 title: TraceMind AI
-emoji: 🔍
+emoji: 🧠
 colorFrom: indigo
 colorTo: purple
 sdk: gradio
@@ -16,7 +16,7 @@ tags:
   - gradio
 ---
 
-# 🔍 TraceMind-AI
+# 🧠 TraceMind-AI
 
 <p align="center">
   <img src="https://raw.githubusercontent.com/Mandark-droid/TraceMind-AI/assets/Logo.png" alt="TraceMind-AI Logo" width="200"/>

screens/chat.py

@@ -245,7 +245,7 @@ def create_chat_ui():
                     label="Agent Conversation",
                     height=500,
                     show_label=True,
-                    avatar_images=(None, "🤖")
+                    avatar_images=(None, "https://raw.githubusercontent.com/Mandark-droid/TraceMind-AI/assets/Logo.png")
                 )
 
                 with gr.Row():