- enable WAL journal mode for better concurrent access
- increase busy_timeout to 10s
- reduce pool_size to 1 to prevent write conflicts
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add Oban ~> 2.18 with SQLite support (Oban.Engines.Lite) for durable
background job processing. Configure aggressive pruning (60s max_age)
to keep database lean, with a dedicated images queue.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>