* Add CreateCollectionAsync method to OrganizationTestHelpers for collection creation with user and group associations
* Update public MembersController List endpoint to include associated collections in member response model
* Update MembersControllerTests to validate collection associations in List endpoint. Add JsonConstructor to AssociationWithPermissionsResponseModel
* Refactor MembersController by removing unused IUserService and IApplicationCacheService dependencies.
* Remove nullable disable directive from Public MembersController
* Add Collections Tests
* Update CollectionRepository Implementation
* Test Adding And Deleting Through Replace
* Format
* Fix Most Test Warnings
* Format
* Renamed ProductType to ProductTierType
* Renamed Product properties to ProductTier
* Moved ProductTierType to Bit.Core.Billing.Enums namespace from Bit.Core.Enums
* Moved PlanType enum to Bit.Core.Billing.Enums
* Moved StaticStore to Bit.Core.Billing.Models.StaticStore namespace
* Added ProductType enum
* dotnet format
