feat: migrate and redesign dashboard to modern React

- Full rewrite of legacy vanilla JS UI into React SPA
- Implement modern design system using Tailwind CSS and shadcn/ui primitives
- Create typed API modules and hooks for voice, media, and moderation
- Add new features: separated Music and Screen Share panels, Image Grid
- Implement unified WebSocket hook for real-time state and PCM audio
- Improve visualizer with smooth CSS transitions and live state sync
- Add __dirname polyfill for ES module compatibility
- Ensure responsive layout for mobile and desktop

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

package.json

@@ -26,16 +26,22 @@
     "@dank074/discord-video-stream": "workspace:*",
     "@discordjs/opus": "^0.10.0",
     "@discordjs/voice": "^0.19.1",
+    "@radix-ui/react-scroll-area": "^1.2.10",
+    "@radix-ui/react-select": "^2.2.6",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@radix-ui/react-tabs": "^1.1.13",
     "@snazzah/davey": "^0.1.10",
     "@types/pg": "^8.20.0",
     "@vitejs/plugin-react": "^6.0.2",
     "better-sqlite3": "^12.10.0",
+    "clsx": "^2.1.1",
     "discord.js-selfbot-v13": "workspace:*",
     "dotenv": "^17.4.2",
     "drizzle-orm": "^0.45.2",
     "express": "^5.2.1",
     "helmet": "^8.1.0",
     "libsodium-wrappers": "^0.8.2",
+    "lucide-react": "^1.16.0",
     "p-retry": "^8.0.0",
     "pg": "^8.20.0",
     "pino": "^10.3.1",
@@ -46,6 +52,7 @@
     "react": "^19.2.6",
     "react-dom": "^19.2.6",
     "sodium-native": "^5.1.0",
+    "tailwind-merge": "^3.6.0",
     "vite": "^8.0.13",
     "ws": "^8.20.1",
     "zod": "^4.4.3"
@@ -58,8 +65,11 @@
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "@types/ws": "^8.18.1",
+    "autoprefixer": "^10.5.0",
     "drizzle-kit": "^0.31.10",
     "pino-pretty": "^13.1.3",
+    "postcss": "^8.5.14",
+    "tailwindcss": "^3.4.17",
     "tsx": "^4.22.0",
     "vitest": "latest"
   }