📖About

Sub-initiative of CAROL-INI-508. Apply the 10 template improvements proposed for the Migration Roadmap app so future migrations get the same shape Carol does.

SCOPE: 1. Migration metadata: add source_repo_url, source_languages, target_carol_version, project_path, last_touched columns to migrations table. 2. Capability budget: add budget_usd column to capabilities (estimated_hours already exists). 3. Decision log: new migration_decisions table (id, migration_id, decision, decided_by, decided_at). 4. UI landing cards: stale indicator (last_touched > 14d), health badge (combined phase progress + blocker count). 5. UI detail view: three-stage badge (Extract/Audit/Refactor), metadata block at top, decision log section, clickable initiative_ref links pointing at /dev/initiatives/, design/cookbook references block. 6. API endpoints: GET/POST /api/migrations/{id}/decisions, GET/POST /api/migrations/{id}/links. 7. Source-tagging summary on detail header: count of migration-tagged requirements + gap-tagged requirements. 8. Inline add-migration form on landing. 9. Verify Carol migration is status=active (already set during INI-564 seed).

MODE: bypass.