Implements the foundational layer that all SynapBus features depend on:
- internal/storage: SQLite connection manager (WAL mode, busy_timeout,
foreign_keys) and embedded migration runner using modernc.org/sqlite
- internal/messaging: MessagingService with send, read inbox, claim,
mark done/failed, and FTS5 search. SQLite-backed MessageStore with
conversation auto-creation and read/unread tracking via inbox_state.
- internal/agents: AgentService with register, authenticate (bcrypt),
update, deregister, discover by capability. HTTP auth middleware.
- internal/mcp: MCP server using mark3labs/mcp-go with 9 registered
tools (send_message, read_inbox, claim_messages, mark_done,
search_messages, register_agent, discover_agents, update_agent,
deregister_agent). SSE transport, health endpoint, connection manager.
- internal/trace: Async trace recorder with buffered channel for
recording agent actions to SQLite traces table.
- cmd/synapbus: Updated main.go wiring storage, migrations, services,
MCP server, chi router, and graceful shutdown.
All code compiles with CGO_ENABLED=0. Full test suite passes.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
