OCR Service improvements:
- Single worker ThreadPoolExecutor to prevent parallel OCR memory accumulation
- Semaphore to ensure only one OCR operation at a time
- Explicit numpy array cleanup after each OCR step
- Forced garbage collection after every OCR request
- Memory threshold check (2500MB) with pre-processing GC
- Memory usage logging before/after processing
Backend auto-restart:
- Add run-with-restart.sh wrapper script for uvicorn
- Auto-restart on crash (OOM, etc.) with max 10 restarts
- Reset restart counter if process runs >60s (stable)
- Graceful exit on SIGINT/SIGTERM
- Update start-prod.sh and start-test.sh to use wrapper
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Marius Mutu
51d736addf