- Remove the two issue-number tags from Rust comments (tracker-tag lint).
- Correct the module doc: the durable download is keyed by the per-repo
run NUMBER + attempt segment (matches the code + persisted_logs doc),
not a global id — the earlier 'global id' wording was stale.
- Replace the fragile e.to_string().contains("out of range") branch with
a typed StreamerMiss enum (StepOutOfRange vs Unavailable), so a usage
error can never silently fall through to the persisted-log path if a
message string changes.
e816cf4d72