feat: integration tests for nestjs generator
Description
We have introduced a standardized integration testing pattern to validate that generated feature flag clients are both compilable and usable within their intended language or framework ecosystems. The NestJS generator currently does not have integration test coverage.
We should add integration tests for the NestJS generator using the structure and methodology described in the CLI's testing documentation.
📄 Relevant Documentation:
Integration Testing Pattern
Tasks
Acceptance Criteria
- ✅ NestJS generator is covered by at least one integration test
- ✅ Generated NestJS client compiles and integrates into a real app
- ✅ Integration test runs automatically in CI
- ✅ Test conforms to the documented integration testing pattern
Additional Notes
This test will help prevent regressions and ensure confidence that the NestJS generator produces valid, working clients suitable for real-world usage.