feat: establish unified project foundation with root config cleanup

- Archive legacy packages/, services/, server/ directories
- Update pnpm workspace to web + browser-ext
- Simplify root package.json scripts to delegate to web/
- Update turbo.json for new workspace structure
- Remove obsolete root config files (vite, tsconfig, etc.)
- Add .nvmrc, .editorconfig for consistent dev environment
- Update CI workflow to remove references to deleted packages
- Add missing dependencies (@tailwindcss/vite, tailwindcss) to web
- Add test and lint scripts to web package
- Verify pnpm install, build, and dev work correctly

web/package.json

@@ -1,26 +1,32 @@
 {
-  "name": "example-with-trpc",
+  "name": "web",
   "type": "module",
   "scripts": {
     "dev": "vite dev",
     "build": "vite build",
     "start": "vite start",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "vitest run",
+    "lint": "tsc --noEmit"
   },
   "dependencies": {
     "@solidjs/meta": "^0.29.4",
     "@solidjs/router": "^0.15.0",
     "@solidjs/start": "2.0.0-alpha.2",
+    "@solidjs/vite-plugin-nitro-2": "^0.1.0",
+    "@tailwindcss/vite": "^4.0.0",
     "@trpc/client": "^10.45.2",
     "@trpc/server": "^10.45.2",
     "@typeschema/valibot": "^0.13.4",
     "solid-js": "^1.9.5",
+    "tailwindcss": "^4.0.0",
     "valibot": "^0.29.0",
-    "vite": "^7.0.0",
-    "@solidjs/vite-plugin-nitro-2": "^0.1.0"
+    "vite": "^7.0.0"
   },
   "engines": {
     "node": ">=22"
   },
-  "devDependencies": {}
+  "devDependencies": {
+    "vitest": "^4.1.5"
+  }
 }