Introduced the `CommonApiTests` class to validate the behavior of the `ReCClient`'s `Common` API.
- Added `using` directives for namespaces related to procedures and commands to support the new tests.
- Verified dependency injection resolution for `ReCClient` and its `Common` API.
- Added tests for `CreateAsync`, `UpdateAsync`, and `DeleteAsync` methods to ensure proper handling of payloads and expected behavior:
- `CreateAsync_with_invalid_action_payload_throws_or_completes`: Tests invalid payload handling for `CreateAsync`.
- `UpdateAsync_with_body_payload_throws_or_completes`: Tests payload handling for `UpdateAsync`.
- `DeleteAsync_sends_payload_as_query_string`: Verifies query string construction for `DeleteAsync`.