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maziggy
691fb133b7
Add support for external network cameras (MJPEG, RTSP, HTTP snapshot) that replace a printer's built-in camera when configured. Features: - Live streaming on printers page (replaces built-in camera) - Finish photo capture from external camera on print complete - Layer-based timelapse: captures frame on each layer change, stitches to MP4 video on print completion Backend changes: - Add external_camera_url, external_camera_type, external_camera_enabled fields to Printer model with database migration - New external_camera.py service: MJPEG/RTSP/snapshot frame capture, connection testing, MJPEG stream generation - New layer_timelapse.py service: TimelapseSession management, layer-by-layer frame capture, ffmpeg video stitching - Add on_layer_change callback to MQTT client and printer manager - Update camera routes with external camera streaming and tracking - Update print lifecycle hooks for timelapse start/stitch/cancel - Add external camera fields to backup/restore - Rate limiting for external camera streams (prevents browser freeze) Frontend changes: - Add external camera configuration UI in Settings > Camera - Per-printer enable toggle, URL input, type selector, test button - Toast notification on save Closes #143