Drives the native KameraReplay kit from Dart E2E tests. Orchestration only — it carries fixture
ids and the trace across the control channel; pixels stay native (kamera publishes
frames to KameraFrameHub, the host loop runs native).
The known, vendored replay fixtures. Selecting a case rather than a raw id keeps E2E code from
pointing at a fixture that isn't in the manifest. Raw ids are still accepted (installId) for
repo-specific fixtures. Kept 1:1 with the native ReplayFixtureId enums.
