Luke Mino-Altherr 3a096a08ae feat(assets): add background asset seeder for non-blocking startup ...

- Add AssetSeeder singleton class with thread management and cancellation
- Support IDLE/RUNNING/CANCELLING state machine with thread-safe access
- Emit WebSocket events for scan progress (started, progress, completed, cancelled, error)
- Update main.py to use non-blocking asset_seeder.start() at startup
- Add shutdown() call in finally block for graceful cleanup
- Update POST /api/assets/seed to return 202 Accepted, support ?wait=true
- Add GET /api/assets/seed/status and POST /api/assets/seed/cancel endpoints
- Update test helper to use ?wait=true for synchronous behavior
- Add 17 unit tests covering state transitions, cancellation, and thread safety
- Log scan configuration (models directory, input/output paths) at scan start

Amp-Thread-ID: https://ampcode.com/threads/T-019c2b45-e6e8-740a-b38b-b11daea8d094
Co-authored-by: Amp <amp@ampcode.com>

2026-02-11 17:41:38 -08:00

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background-asset-seeder.md

feat(assets): add background asset seeder for non-blocking startup

2026-02-11 17:41:38 -08:00