diff --git a/.planning/phases/02-authentication-multi-tenancy/02-01-SUMMARY.md b/.planning/phases/02-authentication-multi-tenancy/02-01-SUMMARY.md
new file mode 100644
index 0000000..fdb8371
--- /dev/null
+++ b/.planning/phases/02-authentication-multi-tenancy/02-01-SUMMARY.md
@@ -0,0 +1,40 @@
+# Plan 02-01: Backend Auth Foundation — Summary
+
+**Status:** Complete
+**Date:** 2026-06-18
+
+## What Was Built
+
+### Task 1: Prisma Schema, RLS, PrismaModule
+- Expanded Prisma schema with User, Tenant, UserTenant models
+- PostgreSQL RLS migration with tenant isolation policies
+- PrismaModule with Client Extensions for per-request tenant context via set_config()
+
+### Task 2: AuthModule
+- Passport LocalStrategy + JwtStrategy
+- JWT tokens in httpOnly cookies
+- argon2 password hashing
+- AuthController with /auth/login and /auth/logout endpoints
+- @Public() decorator for unauthenticated routes
+- JwtAuthGuard and RolesGuard
+
+### Task 3: UserModule, TenantModule, Wiring
+- UserService with CRUD operations
+- AdminSeedService: auto-creates super-admin from Docker ENV (TESSERA_ADMIN_USER, TESSERA_ADMIN_EMAIL, TESSERA_ADMIN_PASSWORD)
+- TenantService with CRUD
+- TenantMiddleware extracting tenantId from JWT
+- App.module wiring with global guards
+- HealthController marked @Public()
+
+## Commits
+- `d0b36c8`: Prisma schema expansion, RLS migration, PrismaModule
+- `6190f3d`: AuthModule with Passport strategies, guards, decorators
+- `4b05627`: UserModule, TenantModule, admin seed, app.module wiring
+
+## Requirements Addressed
+- AUTH-01: Initial admin from Docker ENV ✓
+- AUTH-03: Login/logout endpoints ✓
+- AUTH-04: JWT session persistence ✓
+- AUTH-05: RBAC (super-admin, admin, user) ✓
+- TNNT-01: RLS tenant isolation ✓
+- TNNT-03: Per-request tenant context ✓