Two gaps I left open last night, both about the ledger telling the truth.

**A pod that went away without a pool noticing was never billed to anyone.** A
pool closes its own pods' bills — `_terminate` for one it retires, `forget` for
one RunPod says is gone — and neither runs for a pod only the REGISTRY knew
about: one orphaned by a restart, or terminated from the console or straight
through the RunPod API. Observed: pod lgdgfs749chkib, killed by hand, never
appeared in the ledger while two pods that went through coderai did.
`close_bill_from_registry()` now computes the hours from the registry's own
`created` — the only record of when a pod started once no handle exists — and
records them against the pool it belonged to. Both reaper paths use it, so the
"terminated as stale" and "vanished from the account" cases cannot drift apart,
and a pod a pool still holds is deliberately skipped: `forget` ledgers that one,
and counting it here as well would double-count every pod RunPod reclaims.

**`record_spend` dropped the `reaped` flag it was being handed.** It keeps a
deliberate allow-list, which is right — the file is persisted and pruned for
every pod — but the list has to carry what distinguishes one kind of charge from
another. A pod the reaper killed looked in the file exactly like one a pool
retired on purpose. `reaped` and `reason` are kept now.

Writing the test for the first fix found a third thing, and it was mine: v0.3.56
made a stale registry entry stop counting as "known" so the reaper could kill the
pod it named — but the reconcile was only ever asked about known ids, so that
same change stopped stale entries being RECONCILED. An entry for a pod that no
longer exists was then never pruned and its hours never attributed. The reaper
now reconciles against the whole registry; `known` keeps its one job, which is
deciding what is shielded from reaping.

9 tests in tests/test_ledger_out_of_band.py, including the double-count guard
and the pruning regression. test_runpod_client_scale's source anchor moves with
the change and says why.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PxYHWbCAjjjD7A1rhFKtaW