Improve the federation status command to show more comprehensive
information similar to `git remote -v` with health info:
- Show peer URLs alongside peer names
- Display pending local changes count (uncommitted)
- Test connectivity to each peer (via fetch)
- Track and display last sync time in metadata table
- Show reachability status with error messages on failure
Changes:
- cmd/bd/federation.go: Enhanced status output with URLs, connectivity
checks, pending changes, and last sync time
- internal/storage/dolt/federation.go: Added getLastSyncTime/setLastSyncTime
methods using metadata table, record sync time on successful sync
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Merge SQL user authentication with Emma federation sync implementation:
- Add federation_peers table for encrypted credential storage
- Add credentials.go with AES-256-GCM encryption, SHA-256 key derivation
- Extend FederatedStorage interface with credential methods
- Add --user, --password, --sovereignty flags to bd federation add-peer
- Integrate credentials into PushTo/PullFrom/Fetch via withPeerCredentials
- DOLT_REMOTE_USER/PASSWORD env vars protected by mutex for concurrency
Credentials automatically used when syncing with peers that have stored auth.
Continues: bd-wkumz.10, Closes: bd-4p67y
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add peer-to-peer synchronization for Dolt-backed beads databases:
- New FederatedStorage interface with PushTo, PullFrom, Fetch, ListRemotes,
RemoveRemote, and SyncStatus methods
- DoltStore implementation using DOLT_PUSH, DOLT_PULL, DOLT_FETCH
- Full bd federation command with subcommands:
- sync: bidirectional sync with conflict resolution (--strategy ours|theirs)
- status: show ahead/behind counts and conflict state
- add-peer/remove-peer/list-peers: manage federation remotes
- Comprehensive tests for all federation APIs
Closes: bd-wkumz.4
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
