chore(deps): remove unused React/UI dependencies from headless web API

- Remove 31 unused packages: React, Tailwind, Radix UI, etc.

- Clean up web/tsconfig.json (remove JSX, DOM lib)

- Remove old web/dist/ build artifacts

Web dashboard is now API-only, no UI dependencies needed

web/tsconfig.json

@@ -1,14 +1,10 @@
 {
   "compilerOptions": {
     // Environment setup & latest features
-    "lib": [
-      "ESNext",
-      "DOM"
-    ],
+    "lib": ["ESNext"],
     "target": "ESNext",
     "module": "Preserve",
     "moduleDetection": "force",
-    "jsx": "react-jsx",
     "allowJs": true,
     // Bundler mode
     "moduleResolution": "bundler",
@@ -38,8 +34,5 @@
     "noUnusedParameters": false,
     "noPropertyAccessFromIndexSignature": false
   },
-  "exclude": [
-    "dist",
-    "node_modules"
-  ]
+  "exclude": ["node_modules"]
 }