Filter test results by status and highlight new failures

### Area

Build Operations (run, trigger, cancel, logs)

### Problem or use case

Users need to distinguish new failures from existing failures and filter a run’s test results. Test history and paginated results already shipped in #337; MUTED labels are also implemented.

### Proposed solution

First slice:
- Add `--status passed|failed|ignored|new` to `run tests`, using the existing occurrence query support.
- Show NEW for occurrences marked `newFailure`; preserve MUTED labels and existing `--failed` / `--muted` behavior.
- Verify filtering and labels against actual test occurrences, including pagination and empty results. Keep JSON compatible.

The live server accepts build-scoped occurrence queries and returns status/muted fields. Grouping by suite/class needs additional `parsedTestName` data and can follow separately. Project-wide views and mute operations remain demand-driven; investigation management is tracked in #136.

### Alternatives considered

Use `run tests --test` for history and `teamcity api` for queries not yet exposed as flags. No additional top-level test command is needed for this slice.

### Contribution

- [ ] I'd be willing to submit a PR (once it's `status:finalized`)