#4294 feat(daemon): advise session list readers about cross-workspace claims

Summary

session list answers for one workspace scope, so a caller in a second checkout sees an empty list while a daemon in another state dir holds the device they are about to claim — audited sessions then reused foreign cwd: session names 65 times rather than risk the invisible holder. The list response now attaches a cross-workspace claim advisory when inspectDeviceClaims shows live claims outside the queried scope, so the caller learns the device is busy and who holds it before attempting anything.

3 files changed (inventory response, advisory plumbing, tests).

Validation

• Head: 0a516a6c6 on a68693c72 (includes review-fix commit).
• pnpm run typecheck, pnpm run lint, inventory tests, integration-progress --check, fallow, freerange: pass locally.
• Independent cold review: applied. CI runs the full gates on push.

🤖 Generated with Claude Code

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