DashboardService was constructing 'today in Beijing' bounds with a +08:00 offset, which Npgsql rejects when binding to a timestamp with time zone column. Added .ToUniversalTime() to normalize to UTC (same instant, offset 0), matching the existing pattern in SessionAnalyticsService.GetUtcWindow.
DbContext is not thread-safe. Task.WhenAll caused concurrent access
within the same scoped DbContext, throwing 'A second operation was
started on this context instance' errors on slower machines.
Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com
Storage Tier System:
- Add StorageTier enum (Green >30% / Yellow 10-30% / Red <10%)
- Extend StorageGuardResult with Tier, CanStartNewRecording, ShouldPauseActive, UsagePercent
- Yellow tier: deny new recordings but allow existing to finish and upload
- Red tier: deny new recordings and pause active sessions
- Auto-recovery: when disk frees up, polling automatically resumes new recordings
- Update LiveRoomPollingBackgroundService to use tier-based checks
- Expose tier + usage percent in Recovery API
Dashboard Queue Monitor:
- Add pending transcode count, pending upload count, queued data volume to dashboard
- Add storage tier badge (Green/Yellow/Red) with usage percentage
- Add queue monitoring card to dashboard view
Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com
Dashboard:
- Add DashboardDto, DashboardService with SQL-level aggregate queries
- Add GET /api/dashboard endpoint with real-time system status
- Add repository aggregate methods (CountByAvailability, SumDuration, etc.)
- Add DashboardView.vue as new landing page with KPI cards, storage status, recent sessions, top rooms
- Update router to make dashboard the new / route, add nav item in sidebar
File Preview:
- Add IVideoMetadataService + FfmpegVideoMetadataService for video metadata extraction
- Extend MediaBrowserItemDto with Metadata and ThumbnailUrl fields
- Add includeMetadata param to media browser API, add thumbnail endpoint
- Add SessionPlaylistDto and GET /api/record-sessions/{id}/playlist for continuous playback
Bandwidth Statistics:
- Add -progress pipe:1 to live recording ffmpeg args for bitrate output
- Parse total_size/bitrate/speed from ffmpeg progress lines during recording
- Write bandwidth samples as SystemLogEntry (Category=Bandwidth) every 30s
- Add BandwidthStatisticsService, BandwidthController with session timeline + daily summary
- Add bandwidth TypeScript types
Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com