Publish Code Everywhere host identity

[cbusillo]

Summary

• seed Code Everywhere pending-work smoke state support
• report stale Code Everywhere command outcomes
• add optional remote_inbox.host_id config
• include host_id in websocket hello when present, omitting it when absent
• include hostId in Code Everywhere session_hello events for the HTTP cockpit sink

Validation

• cargo test -p code-core remote_inbox_config_parses_and_resolves_defaults
• cargo test -p code-tui remote_inbox --features test-helpers
• ./build-fast.sh
• CODE_EVERYWHERE_CODE_BINARY=/Users/cbusillo/Developer/code/.code/working/_target-cache/code/feat-code-everywhere-host-id-from-remote-inbox-be35408eb78a-2af88e04f956/code-rs/dev-fast/code pnpm smoke:cockpit:real-tui from /Users/cbusillo/Developer/code-everywhere

Branching

Base branch is now local/cbusillo-overlay, which is the GitHub default branch and normal local build source of truth for this fork.

[shiny-code-bot]

Post-merge follow-up note:

• PR Publish Code Everywhere host identity #6 merged into local/cbusillo-overlay as 5e7fe569f9e31ad403266c24484e1ff9f623237e.
• The first post-merge CodeQL run failed only in Swift autobuild because the generated default-setup matrix still included Swift after the repo default branch changed to the overlay. Current CodeQL default setup no longer includes Swift, so I reapplied default setup and reran CodeQL.
• Fresh CodeQL run 25138139753 passed all jobs.
• Code scanning now reports 15 open overlay-default alerts, none in the PR Publish Code Everywhere host identity #6 changed files. Repo issues are disabled, so the finding is tracked in the workspace metadata rollout plan rather than a GitHub issue.