Triage notes

Mission-scoped triage artifacts: root-cause clustering, DIR-013 sub-issue plans, and post-mission delta summaries.

Conventions:

• One subdirectory or filename prefix per mission, named after the mission's ULID or short code so unrelated triages don't shadow one another.
• Filenames are date-prefixed (YYYY-MM-DD-<missionid>-<topic>.md) so the directory sorts chronologically.
• Triage docs are read-only history once the mission merges — keep them as evidence for retrospectives and future similar drift, not as living documents.

File	Mission	Purpose
2026-05-25-01KSF9HJ-test-failure-triage.md	test-stabilization-and-debt-pass-01KSF9HJ	Root-cause clustering of the 249-failure pytest baseline that #1298 surfaced.
2026-05-25-01KSF9HJ-dir013-sub-issues.md	test-stabilization-and-debt-pass-01KSF9HJ	The 10 GitHub sub-issues filed per DIR-013 from the triage.
2026-05-26-01KSF9HJ-post-mission-summary.md	test-stabilization-and-debt-pass-01KSF9HJ	Post-mission pytest delta + WP landing summary + acceptance criteria roll-up.