fix: show member email instead of UUID in team management

backend/internal/models/tenant.go

@@ -20,6 +20,7 @@ type UserTenant struct {
 	UserID    uuid.UUID `db:"user_id" json:"user_id"`
 	TenantID  uuid.UUID `db:"tenant_id" json:"tenant_id"`
 	Role      string    `db:"role" json:"role"`
+	Email     string    `db:"email" json:"email"`
 	CreatedAt time.Time `db:"created_at" json:"created_at"`
 }
 

backend/internal/services/tenant_service.go

@@ -139,7 +139,11 @@ func (s *TenantService) FirstTenantForUser(ctx context.Context, userID uuid.UUID
 func (s *TenantService) ListMembers(ctx context.Context, tenantID uuid.UUID) ([]models.UserTenant, error) {
 	var members []models.UserTenant
 	err := s.db.SelectContext(ctx, &members,
-		`SELECT user_id, tenant_id, role, created_at FROM user_tenants WHERE tenant_id = $1 ORDER BY created_at`,
+		`SELECT ut.user_id, ut.tenant_id, ut.role, ut.created_at, COALESCE(au.email, '') as email
+		 FROM user_tenants ut
+		 LEFT JOIN auth.users au ON au.id = ut.user_id
+		 WHERE ut.tenant_id = $1
+		 ORDER BY ut.created_at`,
 		tenantID,
 	)
 	if err != nil {