Refactor and clean up codebase by removing unused functions and reorganizing imports

- Removed unused model keys and functions from properties.py.
- Deleted projection.py as its functions were no longer needed.
- Cleaned up model_catalog.py by removing unused model directory function.
- Updated imports in various test files to reflect new module structure.
- Removed deprecated test cases related to image editing tools.
- Added new tests for ONNX runtime provider selection logic.

src/anyimage/server/model_catalog.py

@@ -178,7 +178,6 @@ MOGE2_MODELS = {
         ),),
     ),
 }
-MOGE2_MODEL = MOGE2_MODELS["MOGE2_VITS_NORMAL"]
 DOWNLOADABLE_MODELS = {
     BEN2_MODEL.key: BEN2_MODEL,
     **UPSCALE_MODELS,
@@ -193,11 +192,6 @@ def get_downloadable_model(model_key):
         raise ValueError(f"Unknown model: {model_key}") from error
 
 
-def model_directory_name(model_key):
-    """Return the model's folder name inside the shared models directory."""
-    return get_downloadable_model(model_key).directory_name
-
-
 def model_record(model, ready=False):
     """Return public model metadata exposed by the Models Resource."""
     return {