LiveView on_mount thread_id metadata bridge.
Reads _crosswake_thread_id from the LiveView connect params
and sets it as crosswake_thread_id in the process Logger.metadata.
The Plug is the sole mint authority, and an absent param is a valid gap until Phase 93.
Optional dependency
This module is only available when {:phoenix_live_view, "~> 1.1"} is declared as a dependency.
After adding :phoenix_live_view to your deps, run mix deps.compile --force crosswake_threadline
(stale-BEAM caveat: optional deps are not compiled by default until forced).