Filament's sanitizer strips data-id, data-label and data-char from
mention spans, breaking both display (unstyled @mention) and editing
(@-only shown in RichEditor). Register a package-scoped sanitizer that
explicitly allows these attributes on span elements.
Also fix double-replacement bug in renderBodyWithMentions() where both
the rich-editor regex and str_replace fallback could run on the same
mention, producing nested styled spans.
Filament comments package with:
- Polymorphic commenting on any Eloquent model
- Threaded replies with configurable depth
- @mentions with autocomplete and user search
- Emoji reactions with toggle and who-reacted tooltips
- File attachments via Livewire uploads
- Reply and mention notifications via Filament notification system
- Thread subscriptions for notification control
- Real-time broadcasting (opt-in Echo) with polling fallback
- Dark mode support
- CommentsAction, CommentsTableAction, CommentsEntry for Filament integration
- 204 tests, 421 assertions
