Disabled-by-default audit feature (EVIDENCE_RECEIPTS_ENABLED): appends a
hash-chained JSONL receipt per finished/failed toolcall under
<DATA_DIR>/flow-<id>/evidence/receipts.jsonl, recording toolcall
provenance plus SHA-256 hashes of args/result (no raw content).
Integration adapted to current main: the original PR built the receipt
from a database.Toolcall returned by ce.db.UpdateToolcall*Result, which
the executor no longer uses after the ToolCallLogProvider (tclp) refactor.
Receipts are now built from the in-scope toolcall data at the tclp log
sites and recorded non-fatally, so a receipt failure is logged and never
fails an otherwise-successful toolcall.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
mason5052
d5a86ff27b