feat: add semantic CSS stylesheets (#3274)

Co-authored-by: Cursor Agent <cursoragent@cursor.com>

apps/web/package.json

@@ -22,6 +22,14 @@
 		"@better-auth/infra": "^0.3.7",
 		"@better-auth/oauth-provider": "^1.6.25",
 		"@better-auth/passkey": "^1.6.25",
+		"@codemirror/autocomplete": "^6.20.3",
+		"@codemirror/commands": "^6.10.4",
+		"@codemirror/lang-css": "^6.3.1",
+		"@codemirror/language": "^6.12.4",
+		"@codemirror/lint": "^6.9.7",
+		"@codemirror/search": "^6.7.1",
+		"@codemirror/state": "^6.7.1",
+		"@codemirror/view": "^6.43.7",
 		"@dnd-kit/core": "^6.3.1",
 		"@dnd-kit/sortable": "^10.0.0",
 		"@dnd-kit/utilities": "^3.2.2",
@@ -60,6 +68,7 @@
 		"@uiw/react-color-colorful": "^2.10.3",
 		"ai": "^7.0.37",
 		"better-auth": "1.6.25",
+		"buffer": "^6.0.3",
 		"cmdk": "^1.1.1",
 		"drizzle-orm": "1.0.0-rc.4",
 		"es-toolkit": "^1.50.0",
@@ -69,6 +78,7 @@
 		"motion": "^12.42.2",
 		"pdfjs-dist": "6.1.200",
 		"pg": "^8.22.0",
+		"prettier": "^3.9.6",
 		"qrcode.react": "^4.2.0",
 		"react": "^19.2.8",
 		"react-dom": "^19.2.8",