### Description When a key is created or updated with the "Budget Windows" feature (which populates the `budget_limits` field as a `List[BudgetLimitEntry]`), the global `ResetBudgetJob` crashes for all keys in the database.

**Root Cause:** In `litellm/proxy/utils.py`, the `jsonify_object` function is responsible for converting Python objects to JSON strings before saving them via Prisma. However, it only checks for dictionaries and completely misses lists:

```python def jsonify_object(data: dict) -> dict: db_data = copy.deepcopy(data) for k, v in db_data.items(): if isinstance(v, dict): # <--- MISSING LIST CHECK try: db_data[k] = json.dumps(v) except Exception: db_data[k] = "failed-to-serialize-json" return db_data ```

Because `budget_limits` is a list, it gets passed to Prisma as a raw Python list instead of a JSON string. When `ResetBudgetJob` runs `update_many` or `upsert` in `reset_budget_for_litellm_keys`, Prisma rejects the raw list for the JSON column, throwing the following error and crashing the entire batch:

```text Failed to reset budget for keys: Unable to match input value to any allowed i…