feat(compliance): data classification fields and retention policies job [FASE-3.5]

backend/app/domain/enums.py

@@ -35,3 +35,10 @@ class TestResult(str, enum.Enum):
     detected = "detected"
     not_detected = "not_detected"
     partially_detected = "partially_detected"
+
+
+class DataClassification(str, enum.Enum):
+    public = "public"
+    internal = "internal"
+    sensitive = "sensitive"
+    restricted = "restricted"