feat: LokiDeploy 初始提交 - 轻量级 K8s Loki 部署平台

Go(Gin) + React(Vite + shadcn/ui + Tailwind) 前后端分离，全中文 UI

- 集群管理：Kubeconfig / Token 双接入，kubectl + helm 部署
- 主机管理：SSH 密钥 / 密码双认证，CPU/内存/磁盘使用率监控，SSH 错误中文友好提示
- 存储配置、部署管理、系统设置
- Docker 镜像内置 kubectl + helm，开箱即用
- run.sh 一键启停（start/stop/restart/status）

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/App.tsx

@@ -0,0 +1,74 @@
+import { Routes, Route, Navigate } from 'react-router'
+import Layout from '@/components/Layout'
+import Login from '@/pages/Login'
+import Dashboard from '@/pages/Dashboard'
+import Clusters from '@/pages/Clusters'
+import Hosts from '@/pages/Hosts'
+import Storage from '@/pages/Storage'
+import Deployments from '@/pages/Deployments'
+import Settings from '@/pages/Settings'
+
+function RequireAuth({ children }: { children: React.ReactNode }) {
+  const token = localStorage.getItem('token')
+  if (!token) {
+    return <Navigate to="/login" replace />
+  }
+  return <Layout>{children}</Layout>
+}
+
+export default function App() {
+  return (
+    <Routes>
+      <Route path="/login" element={<Login />} />
+      <Route
+        path="/"
+        element={
+          <RequireAuth>
+            <Dashboard />
+          </RequireAuth>
+        }
+      />
+      <Route
+        path="/clusters"
+        element={
+          <RequireAuth>
+            <Clusters />
+          </RequireAuth>
+        }
+      />
+      <Route
+        path="/hosts"
+        element={
+          <RequireAuth>
+            <Hosts />
+          </RequireAuth>
+        }
+      />
+      <Route
+        path="/storage"
+        element={
+          <RequireAuth>
+            <Storage />
+          </RequireAuth>
+        }
+      />
+      <Route
+        path="/deployments"
+        element={
+          <RequireAuth>
+            <Deployments />
+          </RequireAuth>
+        }
+      />
+      <Route
+        path="/settings"
+        element={
+          <RequireAuth>
+            <Settings />
+          </RequireAuth>
+        }
+      />
+      <Route path="*" element={<Navigate to="/" replace />} />
+    </Routes>
+  )
+}