Crate choir_bridge 

Bridge library surface: GitHub App auth, status write-back, and the speculative-train mechanics. The sync loop lives in the binary; this exists so auth and train building are testable offline.

Where this sits

docs/architecture.md is the map of the whole workspace. This crate is the mirror-first forge bridge (D21).

It builds on choir_fs, choir_hash, choir_identity and choir_view.

Modules

github

GitHub App auth + status write-back (D21 write-back stage, risk #15).

queue

Queue-as-bot v0 (DECISIONS.md D21, queue stage): speculative merge trains, checked either by the host forge’s CI or by our own (D18).