feat(node-sdk): enhance feature evaluation with detailed event tracki…

…ng (#335)

- Add support for tracking rule evaluation results and missing context
fields,
- Improve feature flag event details in `sendFeatureEvent`,
- Update types to include new evaluation metadata
- Enhance test coverage for new event tracking features,
- Bump package version to 1.5.4

2.3.0 (#110)

2.2.1 (#107)

2.2.0

2.1.11

feat: include SDK version in the auth call and improve config (#96)