fix: add missing @vibe/style dependency to @vibe/base (#3331)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: rivka-ungar

packages/base/package.json

@@ -39,6 +39,7 @@
   },
   "dependencies": {
     "@vibe/shared": "^4.0.0-alpha.1",
+    "@vibe/style": "^4.0.0-alpha.1",
     "classnames": "^2.5.1"
   },
   "devDependencies": {