- Export ID, Uname, Ctx, Cancel, Proc, Keeper, Remote as struct fields
(set-once at creation, not raced during agent loop)
- Keep mutex-protected accessors only for Name, ToolsConn, IsPaused
which are read/written concurrently
- Extract buildAgent() shared helper used by both CreateAgent and
restoreMultiAgentSession — eliminates ~100 lines of duplicated
orchestration (tool server setup, prompt layers, runtime, backend)
- Paused sessions skip tool server entirely during restore (minimal
agent with just history)
- Update fs/session_node.go delegators for exported fields
- 1638 → 1523 lines (-115)
12894027dd