fe66d478ee
- Implemented 3 Commands with handlers and validators: * ActivateClubMembership: Create/reactivate membership * DeactivateClubMembership: Deactivate existing membership * AssignClubFeature: Assign features to club members - Implemented 3 Queries with handlers, validators, and DTOs: * GetClubMembership: Retrieve single membership by UserId * GetAllClubMemberships: List with filtering and pagination * GetClubMembershipHistory: Audit trail with full history - All operations include history tracking via ClubMembershipHistory - Property names aligned with Domain entity definitions - 21 new files, ~600 lines of code - Build successful with 0 errors