Refactored the benchmark and test data infrastructure to use generic, type-safe, and multi-variant models. Introduced generic base classes for the test data hierarchy and factories, with closing-generic aliases for _All_True and _All_False families. Benchmarks now select the correct test data variant per serializer options, and all serializers are generic over the order type. Output and result reporting now include the CLR type name for clarity. Centralized string property handling and improved documentation throughout.
Refactor tests to use _All_True model types throughout
Replaced all usages of legacy test model types (e.g., TestOrder, TestOrderItem, SharedTag, etc.) with new, feature-complete _All_True variants across SignalR test infrastructure, data sources, and service handlers. Updated all generic constraints, method signatures, and test data to use the new types. Added SharedTestBaseModels.cs and SharedTestOrderModels.cs to define abstract bases and concrete _All_True models with full serialization attributes. This enables more thorough and realistic serialization/deserialization testing and future extensibility.
Loretta