fix: Disable Local MCP server when switching from AgentCoder

Co-authored-by: cecli (openai/gemini_cli_local/gemini-2.5-pro)

Author: Your Name

cecli/main.py

@@ -1242,8 +1242,13 @@ def get_io(pretty):
             for tag in [MessageTag.SYSTEM, MessageTag.EXAMPLES, MessageTag.STATIC]:
                 ConversationService.get_manager(coder).clear_tag(tag)
 
+            old_coder = coder
             coder = await Coder.create(**kwargs)
 
+            if isinstance(old_coder, AgentCoder) and not isinstance(coder, AgentCoder):
+                if coder.mcp_manager and coder.mcp_manager.get_server("Local"):
+                    await coder.mcp_manager.disconnect_server("Local")
+
             if switch.kwargs.get("show_announcements") is False:
                 coder.suppress_announcements_for_next_prompt = True