Add library feature rules for editing feature data files, specifying usage of existing features in libraries.ts. This ensures clarity in feature management.

Author: statico

.cursor/rules/library-features.mdc

@@ -0,0 +1,6 @@
+---
+description:
+globs: *.yml
+alwaysApply: false
+---
+When editing feature data files in `data/`, *DO NOT* create new features in libraries.ts unless explicitly asked to. Use only the features already available in `features.ts` when describing a library.