* feat(logging): replace HostProvider with node-machine-id for machine identification
Replace custom HostProvider.env.getMachineId() implementation with the
node-machine-id npm package for retrieving machine identifiers. This
simplifies the codebase by using a well-maintained library instead of
custom host provider logic.
Changes:
- Add node-machine-id dependency (^1.1.12)
- Remove dotenv dev dependency (no longer needed)
- Update distinctId service to use node-machine-id directly
- Refactor tests to stub node-machine-id instead of HostProvider
- Remove HostProvider mock utilities from tests
This change improves maintainability and reduces custom code while
maintaining the same functionality for generating stable machine IDs.
* Removing dead code