Patch release covering the M1/M3/M4 + quality-sweep follow-ups
to PR #8. See CHANGELOG.md for the per-change rationale and
dev_docs/pull_requests/2026/8-endpoint-form-overhaul/CLAUDE_REVIEW.md
for the full review + Addressed Findings roll-up.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>