初始化提交

backend/app/repositories/json_utils.py

@@ -0,0 +1,22 @@
+"""JSON 文本字段转换工具。"""
+
+import json
+from typing import Any
+
+
+def dumps(value: Any) -> str:
+    return json.dumps(value, ensure_ascii=False, separators=(",", ":"))
+
+
+def loads_dict(value: str | None) -> dict[str, Any]:
+    if not value:
+        return {}
+    data = json.loads(value)
+    return data if isinstance(data, dict) else {}
+
+
+def loads_list(value: str | None) -> list[str]:
+    if not value:
+        return []
+    data = json.loads(value)
+    return data if isinstance(data, list) else []