- Replace in-memory photoAiJobs Map with DB-backed photo_jobs table
- Background photo worker (worker.js) with retry, backoff, stale reset
- Handles both AI (Real-ESRGAN) and server-side (sharp) enhancement
- Controlled via photo_worker_enabled setting
- Photo job history in enhance modal with before/after thumbnails + rollback
- Worker dashboard: photo jobs section with status counts, recent table,
compare slider for before/after, rollback from worker UI
- New endpoints: /api/photo-jobs/status|wake|enabled|requeue-failed,
/api/entries/:id/photo/jobs (history), .../rollback
- swapEntryPhotoFiles logs every mutation to photo_jobs table
- Side-by-side before/after comparison with draggable divider
- Zoom (scroll wheel) and pan when zoomed in, double-click to reset
- Sliders moved to sidebar panel, responsive layout
- Original/Result badges on the comparison view
- Helper functions: setEnhanceClip, showEnhanceResult, applyEnhanceTransform
- webcam capture resolution/quality configurable in admin settings (defaults 640x480 / 0.92)
- enhance photo modal in journal: original vs preview with sliders (brightness, contrast, saturation, sharpen) and auto-levels button
- new endpoint PUT /api/entries/:id/photo/enhance replaces photo, cleans old file and thumb
- sharper HEIC conversion (0.92) and webp thumbnails (85)
- worker: fail explicitly on empty AI response
- Replace emoji icons with Lucide across admin pages; add vendor/lucide.min.js and renderIcons() helper\n- Reorder sidebar logically (Dashboard, Journal, Students, Groups, Files, Links, Trash + admin sections)\n- Groups: open photo chronology only via the Фото button; covers no longer clickable\n- Journal: show group badge over card photo, compact AI-status icon beside description, and date range in empty-state message\n- Update README (AI worker, Lucide, worker.js)
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