Run all test suites for KNHK.

This includes:
1. C test suites: `make test-chicago-v04`
2. Enterprise use cases: `make test-enterprise`
3. Integration tests: `make test-integration-v2`
4. Performance tests: `make test-performance-v04`
5. Rust tests: `cargo test --workspace`

Report any failures and ensure all critical paths pass.

