fix: export get_dinov2_ablation_config from configs

mr_jepa/configs/__init__.py

@@ -9,6 +9,7 @@ from .model_config import (
     TrainingPhaseConfig,
     get_hybrid_config,
     get_purist_config,
+    get_dinov2_ablation_config,
 )
 
 __all__ = [
@@ -22,4 +23,5 @@ __all__ = [
     "TrainingPhaseConfig",
     "get_hybrid_config",
     "get_purist_config",
+    "get_dinov2_ablation_config",
 ]