Grouped training-job + evals + base-model-eval for a project

Grouped training-job + evals + base-model-eval for a project.

The adapters list is ordered by training-job creation date descending (newest first). Re-sorting for display (e.g. ascending by score) is handled on the frontend.

Attributes: base_model_id: The shared base-model string used by adapters in this project (e.g. "base:deepseek-ai/DeepSeek-V4-Flash"). None when the project has no training jobs yet. base_model_eval: Latest completed evaluation against the base model. None when no base-model evaluation exists. adapters: Training jobs with their evaluations, newest first.