control-plane: Replace CodeMirror with Monaco editor

Monaco provides a built-in VS Code-like minimap and richer editing
features out of the box.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: limeburst

control-plane/package.json

@@ -22,23 +22,16 @@
   },
   "dependencies": {
     "@aws-sdk/client-s3": "^3.892.0",
-    "@codemirror/lang-html": "^6.4.9",
-    "@codemirror/lang-javascript": "^6.2.2",
-    "@codemirror/lang-json": "^6.0.1",
-    "@codemirror/lang-less": "^6.0.2",
-    "@codemirror/lang-markdown": "^6.2.5",
-    "@codemirror/theme-one-dark": "^6.1.3",
-    "@codemirror/view": "^6.38.2",
     "@hookform/resolvers": "^5.2.2",
     "@lucia-auth/adapter-postgresql": "^3.1.2",
+    "@monaco-editor/react": "^4.7.0",
     "@node-rs/argon2": "^1.8.3",
     "@radix-ui/react-checkbox": "^1.3.3",
     "@radix-ui/react-dropdown-menu": "^2.1.16",
     "@radix-ui/react-label": "^2.1.8",
     "@radix-ui/react-slot": "^1.2.0",
     "@radix-ui/react-toast": "^1.2.15",
     "@sentry/nextjs": "^10.36.0",
-    "@uiw/react-codemirror": "^4.22.2",
     "@upyo/core": "^0.1.1",
     "@upyo/mailgun": "^0.1.1",
     "@zip.js/zip.js": "^2.8.2",