Add the v2 data layer: typed interfaces, central DB with migration
runner, per-entity CRUD, and agent-runner session DB operations.
- src/log.ts: concise message-first logging API
- src/types-v2.ts: AgentGroup, MessagingGroup, Session, MessageIn/Out
- src/db/: connection (WAL), migration runner, 001-initial schema,
CRUD for agent_groups, messaging_groups, sessions, pending_questions
- container/agent-runner/src/db/: session DB connection, messages_in
reads + status transitions, messages_out writes
- 31 new tests, all 277 tests pass
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
3f0451b7b0