Sixteen tasks across four sub-phases (9a export plumbing, 9b LLM tags,
9b Settings restructure, 9d polish and a11y). TDD task structure for
the concrete items (save dialog, LLM extraction, types/persistence);
discovery-and-checklist structure for the polish items where an
a-priori test is not meaningful. Commit cadence matches Phase 8 (one
commit per task, feat/fix/polish prefix tags).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>