Next.js 15 / Prisma 6 Developer

We run an internal sourcing-operations platform (Next.js 15 App Router , Prisma 6, PostgreSQL, Auth.js v5, TypeScript strict). Auth, read views, and the full schema are built and running. The job is to implement the write paths and one approval workflow. You will not be guessing at requirements. Every screen has an annotated UI spec mapping each field to its Prisma model, each action to its role permission, and each mutation to its audit row. The repo contains a working reference pattern (form -- server action -- service layer) to follow. Acceptance criteria are objective. Scope (fixed-price milestones, funded escrow): 1. Paid trial: one create/edit surface following the reference pattern 2. Five remaining write surfaces per spec (forms, validation, drafts, audit logging) 3. Schema migration adding ~ 4 documented fields + UI wiring 4. One approval workflow: multi-table Prisma transaction with role gating and audit trail Requirements: - Strong recent App Router work - server actions, not just pages/api - Prisma migrations on a live schema (no db push cowboy work) - Auth.js v5 specifically (not v4) - TypeScript strict mode without any-escapes - Individual only - no agencies, no subcontracting. ID verified video call before award.