feat: add Quality_Modifiers class for Radarr quality mappings and retrieval method

backend/app/compile/mappings.py

@@ -66,6 +66,18 @@ class Sources:
     }
 
 
+class Quality_Modifiers:
+    """Quality modifier mappings for Radarr ONLY"""
+    RADARR = {
+        'none': 0,
+        'regional': 1,
+        'screener': 2,
+        'rawhd': 3,
+        'brdisk': 4,
+        'remux': 5,
+    }
+
+
 class Qualities:
     """Quality mappings for both applications"""
     COMMON_RESOLUTIONS = {
@@ -927,6 +939,10 @@ class ValueResolver:
         """Maps quality names between different formats based on target app"""
         return QualityNameMapper.map_quality_name(name, target_app)
 
+    @classmethod
+    def get_quality_modifier(cls, quality_modifier: str) -> int:
+        return Quality_Modifiers.RADARR.get(quality_modifier.lower(), 0)
+
     @classmethod
     def get_language(cls,
                      language_name: str,