refactor(storage): standardize size limits to use GB units

lib/config/override_store.go

@@ -32,7 +32,15 @@ func ReadAdminSettingsOverrides(path string) (map[string]string, error) {
 	if payload.Overrides == nil {
 		return map[string]string{}, nil
 	}
-	return payload.Overrides, nil
+	normalized := make(map[string]string, len(payload.Overrides))
+	for key, value := range payload.Overrides {
+		nextKey, nextValue, err := NormalizeOverrideInput(key, value)
+		if err != nil {
+			return nil, err
+		}
+		normalized[nextKey] = nextValue
+	}
+	return normalized, nil
 }
 
 func WriteAdminSettingsOverrides(path string, overrides map[string]string) error {