Codex+Opus regression-gate finding: _isRecoveryControlMessage /
_streamRecoveryControlMessage fell back to matching
provider_details_label==='interruption details'. But a GENUINE 'Response
interrupted' card (Stop button, real provider crash) carries that exact label,
so the filter would drop a real user-facing interruption from the transcript on
the next render/restore — the inverse of the #3300 data-loss class. Require the
explicit server-set recovery_control marker; keep only the two fully-anchored
synthetic-text matches for pre-marker backward-compat. Adds a node-driven
regression test (revert-verified) asserting a label-only interruption card and a
real user turn stay visible while marker + strict text are filtered.
7d2be7f52c
