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

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';