## Outbox extraction (delivery.ts → session-manager.ts)
File I/O for outbound attachments now lives in session-manager.ts alongside
the symmetric inbound extractAttachmentFiles. delivery.ts no longer touches
the filesystem — it hands buffers to the adapter and calls clearOutbox on
success.
- New `readOutboxFiles(agentGroupId, sessionId, messageId, filenames)` and
`clearOutbox(agentGroupId, sessionId, messageId)` in session-manager.ts.
- deliverMessage in delivery.ts loses ~35 lines of fs/path code and its
`fs`/`path` imports.
## Dead-code sweep
TypeScript's --noUnusedLocals surfaced several cruft imports. Fixed:
- src/container-runner.ts: drop unused `markContainerIdle` import; drop
unused `session` parameter from `buildContainerArgs` signature.
- src/delivery.ts: drop unused `getSession`, `writeSessionMessage`,
`wakeContainer` imports.
- src/host-sweep.ts: drop unused `updateSession`, `outboundDbPath` imports.
- container/agent-runner/src/poll-loop.ts: drop unused `config`,
`processingIds` params from `processQuery`.
- Test files: drop unused imports in channel-registry.test, db-v2.test,
host-core.test.
Skipped: `conversations` state in chat-sdk-bridge.ts (never read but
tangled with public `updateConversations` method; cleaning it risks a
merge conflict with the channels branch at the next sync).
## Validation
- `pnpm run build` clean
- `pnpm test` — 137 host tests pass
- `bun test` in container/agent-runner — 17 tests pass
- Service boots (`NanoClaw running`, `OneCLI approval handler started`)
and shuts down cleanly on SIGTERM
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>