H0-01: Reject Apple login mock fallback in production
H0-02: Protect /internal/* with InternalAuthGuard (X-Internal-API-Key)
H0-03: JwtAuthGuard check user status (deletedAt, status)
H0-04: Refresh token check user status + revoke all on deleted
H0-05: User/admin JWT isolation (type=user/admin, enforce ADMIN_JWT_ACCESS_SECRET)
H0-06: Add DTOs for import/source/learning-session controllers
H0-07: 22 E2E tests (h0.e2e-spec.ts), 5 iOS integration docs
Tests: 47/47 (H0 22 + M0 25), no regression.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
