Add WP-0016 to make the instruction-executor output contract robust after the
2026-06-26 daily-triage validation failure (one malformed delimiter discarded a
whole report). Per-item framing for error locality, verify-and-mitigate boundary
parsing with a quarantine lane, producer-trust-boundary guardrails (ADR-004), and
regression/calibration tests. Unblocks WP-0006-T03 / WP-0010-T04.
Also record the 06-26 recheck outcome (streak reset at two) in WP-0006-T03.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
