sync_pilot 0.1.0

A database-agnostic, offline-first synchronization engine for Dart and Flutter featuring smart outbox compaction, field-level conflict resolution, delta sync, and exponential backoff retry.

0.1.0

• Initial release of sync_pilot.
• Added SyncPilotEngine<T> for database-agnostic, offline-first synchronization.
• Added OutboxQueue with automatic operation compaction (squashing redundant creates, updates, and deletes while offline).
• Added optimistic temporary ID mapping (temp_123 -> srv_999) with automatic rewriting of local records, subsequent outbox mutations, and cross-table foreign keys via SyncCoordinator.
• Added batch push support (enableBatchPush, pushBatchSize, and RemoteSyncAdapter.pushBatch).
• Added pluggable ConflictResolver<T> with built-in strategies:
  • ServerWins
  • ClientWins
  • LastWriteWins
  • FieldLevelMerge (3-way and changed-field JSON merging)
  • Custom callback resolver
• Added ready-to-use storage and transport adapters:
  • RestSyncAdapter<T> (REST/Dio/HTTP with partial PATCH, 409 Conflict parsing, and retry classification)
  • SqlSyncStore<T> and SqlOutboxStorage (SQLite/sqflite/sqlite3/Drift)
  • KeyValueSyncStore<T> and JsonStringOutboxStorage (Hive/SharedPreferences)
• Added SyncPayloadCodec (custom, xorBase64, chained / .then()) for at-rest encryption and compression of local store and outbox payloads.
• Added paginated delta synchronization (RemoteDeltaPage) with checkpoint persistence.
• Added RetryPolicy with configurable exponential backoff and jitter.
• Added reactive streams for data observation (watchAll, watchById), engine status (statusStream), ID mappings (idMappingStream), and per-record sync state (getRecordSyncState).