cmdlet refactor

Store/_base.py

@@ -40,6 +40,21 @@ class Store(ABC):
         """True if the store prefers tags to be applied after the file is added."""
         return False
 
+    @property
+    def supports_url_association(self) -> bool:
+        """True when this store supports associating URLs to files."""
+        return False
+
+    @property
+    def supports_note_association(self) -> bool:
+        """True when this store supports per-file named notes."""
+        return False
+
+    @property
+    def supports_relationship_association(self) -> bool:
+        """True when this store supports file relationship links (king/alt/related)."""
+        return False
+
     @abstractmethod
     def add_file(self, file_path: Path, **kwargs: Any) -> str:
         raise NotImplementedError