milestone 23 s3: remove tailwind, replace its preflight with an explicit reset

web/package.json

@@ -34,7 +34,6 @@
 	},
 	"devDependencies": {
 		"@stylexjs/unplugin": "0.19.0",
-		"@tailwindcss/vite": "4.3.3",
 		"@testing-library/dom": "10.4.1",
 		"@testing-library/react": "16.3.2",
 		"@types/node": "26.1.1",
@@ -44,7 +43,6 @@
 		"jsdom": "29.1.1",
 		"oxlint": "1.75.0",
 		"prettier": "3.9.6",
-		"tailwindcss": "4.3.3",
 		"typescript": "7.0.2",
 		"vite": "8.1.5",
 		"vitest": "4.1.10"