Wraps the whole verb dispatch in run() with .with_context(|| format!("repo {repo}"))
instead of threading context through ~34 individual verb files. A body-decode
failure surfaces from forgejo-api as a bare ReqwestError with no status code or
URL retained (no client-injection point to capture more), so without this the
error alone can't distinguish a mistyped org/repo from a transient flake — see
the recent hive-forge triage-automation thread this was filed from.
Split run()'s match into a dispatch() fn so the repo can be captured once before
dispatching and the with_context wrap applied once after, uniformly, regardless
of which verb failed.
d2dc681fcf