Refactor §12 roadmap to point to ls commands and 00_phase.md files instead of listing specific phase numbers and descriptions. Remove ~20 phase-number references from anchors, revision notes, tool surface, feedback, and sync sections — keep only the one stable reference (phase 03 convention). Replace migration ranges with 'ls alembic/versions/'. Replace hardcoded retry values with 'configurable (defaults: ...)'. Status header now points to §12 instead of listing counts.