lib: idea schemas + status mappers + transition guards (M12 T-493)
- lib/schemas/idea.ts: ideaCreateSchema, ideaUpdateSchema, ideaPlanMdFrontmatterSchema
(yaml-frontmatter contract for materialize-step parser)
- lib/idea-status.ts: bidirectional DB↔API mapping, canTransition state-machine
guard, isIdeaEditable + isGrillMdEditable + isPlanMdEditable helpers
- includes auto-regen docs/erd.svg from prisma generate
Tests: 26 cases (status round-trip, transitions valid/invalid, schema validation
edge-cases, priority bounds, verify-enum).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Madhura68
bba3f11269