Use dict[str, Any] for JSON repository document types.

Clarifies that JSON CRUD operates on string-keyed objects without changing runtime behavior.

Co-authored-by: Cursor <[email protected]>

python_repositories/interfaces/json_repository_interface.py

@@ -2,18 +2,19 @@
 
 from collections.abc import Iterator
 from abc import ABC, abstractmethod
+from typing import Any
 
 
 class JsonRepositoryInterface(ABC):
     """Interface that defines JSON document CRUD methods."""
 
     @abstractmethod
-    def get(self, key: str) -> dict | None:
+    def get(self, key: str) -> dict[str, Any] | None:
         """Get a JSON object by key."""
         ...
 
     @abstractmethod
-    def set(self, key: str, data: dict) -> None:
+    def set(self, key: str, data: dict[str, Any]) -> None:
         """Set a JSON object by key."""
         ...