fix(cli): Remove lock icons from REPL, publish v0.3.25 to PyPI

- Simplified model display to just show 'model: provider/model-name'
- Removed authentication lock icons for cleaner interface
- Successfully published to PyPI at https://pypi.org/project/hanzo/0.3.25/

pkg/hanzo/src/hanzo/interactive/enhanced_repl.py

@@ -161,10 +161,7 @@ class EnhancedHanzoREPL:
         else:
             provider = "unknown"
         
-        # Auth status
-        auth_status = "🔓" if self.is_authenticated() else "🔒"
-        
-        return f"[dim]model: {provider}/{model} {auth_status}[/dim]"
+        return f"[dim]model: {provider}/{model}[/dim]"
     
     async def run(self):
         """Run the enhanced REPL."""