woikos 9fed1261ad Add BBolt database backend for HDD-optimized archival relays (v0.48.0) ...

- BBolt B+tree backend with sequential access patterns for spinning disks
- Write batching (5000 events / 128MB / 30s flush) to reduce disk thrashing
- Adjacency list storage for graph data (one key per vertex, not per edge)
- Bloom filter for fast negative edge existence checks (~12MB for 10M edges)
- No query cache (saves RAM, B+tree reads are fast enough on HDD)
- Migration tool: orly migrate --from badger --to bbolt
- Configuration: ORLY_BBOLT_* environment variables

Files modified:
- app/config/config.go: Added BBolt configuration options
- main.go: Added migrate subcommand and BBolt config wiring
- pkg/database/factory.go: Added BBolt factory registration
- pkg/bbolt/*: New BBolt database backend implementation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-06 06:50:58 +01:00

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