REST endpoint (Oxygen.jl POST /upload, multipart) that spools uploaded
files to disk, enqueues lightweight references onto a bounded thread-safe
work queue, and hands off immediately (202 + job IDs; 503 when full). A
configurable pool of worker threads pulls jobs off the queue, logs the
received filename (placeholder for real processing), and moves files to
done/ on success or failed/ on error.
- Queue behind an enqueue!/dequeue!/close! seam for a future RabbitMQ swap
- Startup recovery: re-enqueues leftover files in spool/
- Graceful drain on SIGINT and SIGTERM (via atexit)
- Env-var config; filenames sanitized + UUID-prefixed on disk
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
