[GCWing]

Summary

• Add a Sessions source to the chat context picker so users can browse recent referenceable sessions before typing.
• Keep horizontal arrow keys with the open picker and preserve composition input.
• Negotiate queryless browsing with Peer Device hosts. Legacy hosts retain typed search, and the picker discards results from a previous device activation.

Verification

• Web UI targeted Vitest suites for the picker, key ownership, Session API, and Peer Connection Manager passed (71 tests).
• pnpm run type-check:web, pnpm run i18n:audit, and pnpm run capabilities:check passed.
• cargo test --locked -p openbitfun-product-domains --no-default-features remote_surface passed (20 tests).
• cargo test --locked -p openbitfun-desktop --lib api::session_api::catalog_request_tests passed (2 tests).

Reviewer Notes

The automated picker fixtures cover SSH workspace identity and stale responses during a simulated Peer Device switch. Live SSH, Peer Device, Remote Control, and Detached Dispatch verification and UI captures were skipped.

AI-assisted. Lightly tested with focused automated checks.