Add tests/Svrnty.CQRS.Tests with 61 tests covering:
- CommandMeta and QueryMeta metadata creation and naming conventions
- CommandDiscovery and QueryDiscovery lookup, existence, and enumeration
- DI service registration for commands (with/without result) and queries
- Full pipeline integration (register -> discover -> resolve)
- CqrsBuilder fluent API configuration
- CqrsConfiguration generic storage and mapping callbacks
- Handler execution via DI-resolved instances
Co-Authored-By: Svrnty Inc. <eng@svrnty.com>