refactor: remove unused imports and clean up code in various files

src/langbot/pkg/provider/runners/localagent.py

@@ -355,7 +355,6 @@ class LocalAgentRunner(runner.RequestRunner):
 
         if not is_stream:
             yield final_msg
-            initial_response_emitted = True
         elif not initial_response_emitted:
             yield final_msg
             initial_response_emitted = True

src/langbot/pkg/provider/tools/loaders/mcp.py

@@ -20,7 +20,7 @@ from ....core import app
 import langbot_plugin.api.entities.builtin.resource.tool as resource_tool
 import langbot_plugin.api.entities.builtin.provider.message as provider_message
 from ....entity.persistence import mcp as persistence_mcp
-from .mcp_stdio import BoxStdioSessionRuntime, MCPServerBoxConfig as MCPServerBoxConfig, MCPSessionErrorPhase
+from .mcp_stdio import BoxStdioSessionRuntime, MCPSessionErrorPhase
 
 
 class MCPSessionStatus(enum.Enum):

src/langbot/pkg/provider/tools/loaders/skill_authoring.py

@@ -275,7 +275,6 @@ class SkillToolLoader(loader.ToolLoader):
         # Build <available_skills> section
         available_skills_lines = ['<available_skills>']
         for skill_name, skill_data in sorted(skills.items()):
-            display_name = skill_data.get('display_name') or skill_name
             description = skill_data.get('description', '')
             available_skills_lines.append(f'<skill>')
             available_skills_lines.append(f'<name>{skill_name}</name>')

src/langbot/pkg/skill/activation.py

@@ -2,8 +2,6 @@ from __future__ import annotations
 
 import typing
 
-import langbot_plugin.api.entities.builtin.provider.message as provider_message
-
 from ..provider.tools.loaders import skill as skill_loader
 
 if typing.TYPE_CHECKING:

web/src/app/home/plugins/components/plugin-installed/ExtensionCardComponent.tsx

@@ -22,7 +22,6 @@ import {
   DropdownMenuItem,
   DropdownMenuTrigger,
 } from '@/components/ui/dropdown-menu';
-import { MCPSessionStatus } from '@/app/infra/entities/api';
 
 type ExtensionCardComponentProps = {
   cardVO: ExtensionCardVO;
@@ -73,19 +72,6 @@ export default function ExtensionCardComponent({
     }
   };
 
-  const getStatusColor = (status?: string) => {
-    switch (status) {
-      case MCPSessionStatus.CONNECTED:
-        return 'text-green-600';
-      case MCPSessionStatus.CONNECTING:
-        return 'text-yellow-600';
-      case MCPSessionStatus.ERROR:
-        return 'text-red-600';
-      default:
-        return 'text-gray-600';
-    }
-  };
-
   const renderPluginContent = () => (
     <>
       <div className="text-[0.7rem] text-muted-foreground truncate w-full">

web/src/router.tsx

@@ -1,5 +1,5 @@
 import React, { Suspense } from 'react';
-import { createBrowserRouter, Navigate, Outlet } from 'react-router-dom';
+import { createBrowserRouter, Navigate } from 'react-router-dom';
 
 // Layouts
 import LoginLayout from '@/app/login/layout';