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feat: dashboard screenshot upload & retention (last 20 per client)

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- Listener: subscribe to dashboard topic, forward screenshots to API
- API: store latest + last 20 timestamped screenshots per client, auto-delete older files
- Docs: updated README, TECH-CHANGELOG, and copilot-instructions for screenshot upload and retention policy
This commit is contained in:
RobbStarkAustria
2025-11-30 13:38:07 +00:00
parent df9f29bc6a
commit c193209326
7 changed files with 273 additions and 14 deletions
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README.md
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@@ -338,7 +338,9 @@ mosquitto_sub -h localhost -t "infoscreen/+/heartbeat" -v
- `GET /api/files/converted/{path}` - Download converted PDFs
- `POST /api/conversions/{media_id}/pdf` - Request conversion
- `GET /api/conversions/{media_id}/status` - Check conversion status
- `GET /api/eventmedia/stream/<media_id>/<filename>` - Stream media with byte-range support (206) for seeking
- `GET /api/eventmedia/stream/<media_id>/<filename>` - Stream media with byte-range support (206) for seeking
- `POST /api/clients/{uuid}/screenshot` - Upload screenshot for client (base64 JPEG)
- **Screenshot retention:** Only the latest and last 20 timestamped screenshots per client are stored on the server. Older screenshots are automatically deleted.
### System Settings
- `GET /api/system-settings` - List all system settings (admin+)