Manage users and organizations in Signstack. Users represent individuals who can access Signstack, while organizations provide multi-tenancy, allowing users to collaborate within isolated workspaces.

Each user has a unique identifier (UID), profile information (name, email), and can belong to multiple organizations with different roles. Organizations are independent workspaces where users can create and manage schemas, templates, blueprints, workflows, and other resources. All resources (templates, workflows, etc.) are scoped to an organization.

Organization roles determine access levels: SUPER_ADMIN has full system access, ADMIN can manage organization settings and members, MEMBER has standard access to create and manage resources, and BILLING_MANAGER handles subscription and billing.