Refactor dashboard page: replace React component with static HTML, remove unused dashboardPage.tsx, and update webserver to serve new index.html

package.json

@@ -24,17 +24,13 @@
     "express": "^5.2.1",
     "fluent-ffmpeg": "^2.1.3",
     "helmet": "^8.1.0",
-    "howler": "^2.2.4",
     "libsodium-wrappers": "^0.8.2",
     "p-retry": "^6.2.0",
     "pino": "^9.4.0",
     "pino-http": "^11.0.0",
     "prism-media": "2.0.0-alpha.0",
     "prom-client": "^15.1.3",
-    "react": "^19.2.6",
-    "react-dom": "^19.2.6",
     "sodium-native": "^4.3.2",
-    "tone": "^15.1.22",
     "ws": "^8.20.1",
     "zod": "^4.4.3"
   },
@@ -43,8 +39,6 @@
     "@types/better-sqlite3": "^7.6.13",
     "@types/express": "^5.0.6",
     "@types/fluent-ffmpeg": "^2.1.28",
-    "@types/react": "^19.2.14",
-    "@types/react-dom": "^19.2.3",
     "@types/ws": "^8.18.1",
     "bun-types": "latest",
     "pino-pretty": "^10.3.1",