Data model supports all PRD requirements

When your data model does not cover entities the PRD requires, features that depend on that data silently degrade or fail at runtime. A missing join table for team membership means multi-user collaboration can never persist correctly. A missing audit_results relation means you cannot display scores — the kind of gap that surfaces only after launch, when fixing it requires a migration, a data backfill, and coordinated API changes. ISO 25010:2011 functional suitability defines this as a core quality dimension: software must fulfill its stated functional requirements. Any entity absent from the schema is a hard blocker, not a soft deficiency.

Add the missing entities and relationships directly to your schema file. In Prisma, that means defining the model and its relations, then running prisma migrate dev:

// prisma/schema.prisma
model Team {
  id       String   @id @default(cuid())
  name     String
  members  TeamMember[]
  projects Project[]
}

model TeamMember {
  teamId String
  userId String
  role   String
  team   Team   @relation(fields: [teamId], references: [id])
  @@id([teamId, userId])
}

After migrating, update your RLS policies and permission checks in src/lib/auth/ to account for the new ownership model.