- Add entry count badge next to schema file name showing (xC, yE, zS) counts
- Add tooltip explaining LinkML file names vs class names
- Remove redundant section headers (Classes, Enums, Slots collapsible sections)
- Add URL params for enum (?enum=) and slot (?slot=) deep linking
- Persist category filters, dev tools visibility, and legend visibility to localStorage
- Set 'Main Schema' filter to OFF by default (confusing for users)
- Add Rule 48: Class files must not define inline slots
