v0.18.0

Added

• New MigrationHostedService to automatically apply migrations when starting your project
• New EnvironmentService for easy access to environment variables

Updates

• Removed Validators and in favor of direct validation in entiy factories and methods.
• Additional helper methods on ValidationException
• Additional OTel config
• Cleaner functional test helpers
• Bump HeimGuard
• Update UserPolicyHandler to include a HasPermission() implementation
• Json attribute refactor
• Simplify swagger comments

Fixes

• RMQ Password var
• Email guards for whitespace
• Minor spacing items