Disable facets bar on apps that don't use facet filtering
Apps that show system-wide or day-based data without facet scoping now
have the facet bar disabled for cleaner UI:
- insights: Daily insight files (not facet-filtered)
- stats: Journal-wide aggregate statistics
- tokens: Day-based token usage analysis
- transcripts: Day-based transcript viewer
Also fixes apps/remote/app.json which had "facets": false (invalid,
was being normalized to {} meaning enabled) - now correctly uses
{"disabled": true}.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>