- Next.js 16 (App Router, TS) + Tailwind v4 scaffold
- Prisma 7 with pg driver adapter, wired to dev PostgreSQL
- Dual-env migration setup (.env.development / .env.production via prisma.config.ts)
- Schema: Plan, Company, User, Module, CompanyModule, AuditLog + Role/SubStatus enums
- Auth.js v5 (email+password, JWT, role in session)
- Tenant scoping (lib/tenant.ts) + RBAC helpers (lib/rbac.ts)
- Module catalog (16) + industry->modules map (8 industries)
- Seed (3 plans, 16 modules, super-admin) + /api/health DB check
- README with architecture, migration flow, and full version roadmap

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>