Adjust fallback options for dcg tag and cryolo model (#732)

Author: stephen-riggs

src/murfey/client/context.py

@@ -131,8 +131,10 @@ def ensure_dcg_exists(
                 key=lambda x: x.stat().st_ctime,
             )
             if not dcg_images_dirs:
-                logger.warning(f"Cannot find Images-Disc* in {dcg_search_dir}")
-                return None
+                logger.warning(
+                    f"Cannot find Images-Disc* in {dcg_search_dir}, falling back to Images-Disc1"
+                )
+                dcg_images_dirs = [Path(dcg_search_dir) / "Images-Disc1"]
             dcg_tag = str(dcg_images_dirs[-1])
 
         dcg_data = {

src/murfey/util/processing_params.py

@@ -53,7 +53,7 @@ def cryolo_model_path(visit: str, instrument_name: str) -> Path:
         )
         if possible_models:
             return sorted(possible_models, key=lambda x: x.stat().st_ctime)[-1]
-    return (machine_config.default_model or Path("")).resolve()
+    return machine_config.default_model or Path("")
 
 
 class CLEMProcessingParameters(BaseModel):