1dacb9a5b3
- Updated OpenAI context-promotion linking to handle `-spark` variants and base `gpt-5.5` models. - Adjusted model generation data so OpenAI-like models now promote first to `gpt-5.5` and then to `gpt-5.4` where configured. - Updated unit tests to assert context-promotion targets for both spark and `gpt-5.5` model variants.