Implements hq-ew1mbr.27: The sync.mode config now actually changes how
bd sync operates:
- git-portable (default): JSONL exported on push, imported on pull
- realtime: JSONL exported on every change (placeholder for daemon hook)
- dolt-native: Uses Dolt Push/Pull, skips JSONL workflow entirely
- belt-and-suspenders: Both Dolt remotes AND JSONL for redundancy
Changes:
- Add sync_mode.go with mode constants, Get/Set functions, and helpers
- Update bd sync --status to show actual mode from config
- Add --set-mode flag to bd sync for configuring the mode
- Modify doExportSync to respect mode (Dolt push for dolt-native)
- Modify doPullFirstSync to use Dolt pull for dolt-native mode
- Add RemoteStorage interface for Push/Pull operations
- Add comprehensive tests for sync mode functionality
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>