Schema dropped @unique on MentorAssignment.projectId in PR8 Task 1 →
back-relation becomes a list. Mechanical rename of Prisma queries and
consumer accessors. Legacy single-mentor callers use [0] with a TODO for
PR8 Task 8 to surface the full list. mentor-workspace.ts is left as Task 5.
- routers (mentor, project, applicant, finalist, round) and smart-assignment
service: include/where/select keys renamed; `mentorAssignment: null` →
`mentorAssignments: { none: {} }`; `{ isNot: null }` → `{ some: {} }`.
- UI consumers (mentor + applicant pages): `project.mentorAssignment` →
`project.mentorAssignments[0]` with TODO markers.
- Tests: `findUnique({ projectId })` → `findFirst({ projectId })` since the
composite key now requires both projectId+mentorId. MentorFile.create gains
the new required projectId.
- Workspace endpoints in mentor.ts now guard null mentorAssignmentId until
Task 5 re-scopes them to project.
- finalist.unconfirm now cascades to ALL active mentor assignments.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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