- integrate spatie/icalendar-generator for candidate & panelist .ics invitations (RSVP & 15m alerts)
- add StoreInterviewRequest, ScheduleInterviewDto, and invitation/reminder queued actions
- add migration for job_title, round, description, and reminder_sent_at on interviews table
- style datetime-local picker indicators to pure white on dark input backgrounds
- support button loading spinners with :showLoader="true" and loadingText
- auto-open schedule drawer on validation failure with inline @error alerts and old() bindings
- Add Metered and ConvexSol (CoTURN) provider drivers with response validation and caching
- Add IceCandidateManager with automatic failover and structured logging
- Add IceCandidateProviderInterface and DTOs conforming to RTCIceServer format
