Offline-first architecture for desktop and embedded deployments:
- SQLite event store, offline resilience, projection sync
- Embedded MCP server (local-only mode), Tauri 2.x integration
- Lazy DI initialization, saga compensation primitives
- Zero network dependencies in offline builds (CI-enforced)
- 500+ tests passing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>