Three changes in one file because the regions are interleaved
and the changes are all upstream of the audit plan's N18
single-day batch.
- Q1: `main.rs:636-661` rewritten to build one
`Vec<Arc<DriverConfig>>` and pass `Arc::clone` to both
`DeviceManager` via the new `register_driver_shared` and
to the reaper registry via `Arc::downgrade`. Removes the dead
`registry_configs` second-loop block.
- Q2: reaper closure at `main.rs:765-772` interprets
`waitpid` status via `WIFEXITED && WEXITSTATUS == 0` or
`WIFSIGNALED && WTERMSIG in (SIGTERM, SIGINT)` as a clean
exit, routing to `reap_pid_clean`; anything else routes to
`reap_pid` (crash).
- S3: cfg-gated `set_self_weak(Arc::downgrade(&scheme))`
call after `set_manager` so the detached AER recovery
worker can notify the scheme of rebind events.
driver-manager tests: 164 passing (no regression).
vasilito
37f8b37267