feat: implement frontend with TDD (Part 8)

- Scaffold Vite + React 19 + TypeScript strict project
- Neumorphic dark design system (Tailwind v3, amber/orange LED accents)
- Zustand stores for auth (persist) and UI state (notifications, sidebar)
- TanStack Query v5 hooks for server CRUD operations
- WebSocket hook with reconnection backoff and query invalidation
- Components: StatusLed, Sidebar, ServerCard, LoginPage, DashboardPage
- Protected routing with auth guard
- Axios client with JWT interceptor and 401 redirect
- 68 tests across 11 test files (89% statement coverage, 90% function coverage)
- TDD workflow: RED validated, GREEN achieved, coverage verified

frontend/vite.config.ts

@@ -0,0 +1,22 @@
+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react";
+import path from "path";
+
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: {
+      "@": path.resolve(__dirname, "./src"),
+    },
+  },
+  server: {
+    port: 5173,
+    proxy: {
+      "/api": "http://localhost:8000",
+      "/ws": {
+        target: "ws://localhost:8000",
+        ws: true,
+      },
+    },
+  },
+});