Review follow-ups on the refresh transaction:
- `_provider_state_transaction` takes a `timeout_seconds` applied to BOTH the
active and the root lock. The refresh passes max(default, refresh timeout
+ 5 s); before, only the profile lock used that budget and root's lock kept
the 15 s default, so the waiting profile raised TimeoutError instead of
adopting whenever the peer's POST ran long. The regression test now holds
the endpoint past the lock floor and fails without the passthrough.
- Peer adoption requires a stored access token as well as a rotated refresh
token; an incomplete stored pair falls through to the refresh.
- `_save_codex_tokens` keeps its body: the per-path lock is reentrant, so the
refresh calls it inside the open transaction (as the CLI-recovery path
already did) instead of a split-out helper.
kshitijk4poor
ca6b189a7c