Annotated core entities with AcBinarySerializable and ToonDescription for improved serialization and documentation. Updated appsettings.json to use the production database. Changed solution file to target Visual Studio 17. Added necessary using statements and metadata for entity classes.
- Deleted Mango.Sandbox.SignalRTestClient project and all related files from the solution.
- Switched appsettings.json connection string to use FruitBank_DEV.
- Cleaned up project references in Mango.Sandbox.EndPoints and its test project.
- Commented out all Null* plugin manager/service classes in Mango.Sandbox.EndPoints.Services.
- Add endpoints and tests for binary serialization of TestCustomerDto lists to reproduce and diagnose MessagePack interned string index errors
- Update appsettings.json to use FruitBank_PROD database
- Set AcBinarySerializerOptions in DevAdminSignalRHubSandbox
- Extend TestSignalRTags and ITestSignalREndpointServer for new endpoints
- Add TestCustomerDto class for serialization tests
- Remove obsolete low-level SignalR/HTTP endpoint test files