How long subc waits for a module to ack a relayed route.bind before returning
module_timeout. The ack waits on the module’s own configure, which for AFT
includes a synchronous bounded project walk (up to ~20k files) plus gitignore
and DB-open work — on a cold page cache or a large repo that legitimately
exceeds a couple of seconds. The default is generous because rejecting a VALID
bind is far worse than waiting on a slow one; a consumer that wants a tighter
bound retries the bind itself (the sanctioned warm-bind-retry pattern).