Phase 0 Foundation — Active Scope

Multi-Tenant Core Architecture
Marketing Operating System

Establishing a zero-leak multi-tenant application foundation with isolated database scoping, RBAC membership rules, custom service adapters, and secure authentication.

Multi-Tenant Isolation

User -> Workspace Membership -> Workspace -> Workspace-owned resources hierarchy. Zero data leakage across customer boundaries.

Role-Based Access (RBAC)

Granular access control enforcing OWNER, ADMIN, and MEMBER role scopes for team invites, role updates, and resource mutation.

Isolated Service Adapters

Clean modular backend architecture with explicit service interfaces (`AuthService`, `WorkspaceService`, `TenantGuard`).

Phase 0 Implementation Scope Verified

Next.js App Router + TypeScript
Prisma ORM + PostgreSQL Schema
Secure Session Auth & Password Hashing
Workspace Scoping & Invites
Vitest Service & Auth Test Suite
Docker Compose Local PostgreSQL