fix: use directory config mount for casaos

config.py

@@ -1,12 +1,16 @@
 import json
-import aiofiles
+import os
 from pathlib import Path
 from typing import Optional
 
-CONFIG_PATH = Path("config.json")
+import aiofiles
+
+CONFIG_PATH = Path(os.getenv("CONFIG_PATH", "/app/data/config.json"))
 
 
 async def load_config() -> dict:
+    if CONFIG_PATH.is_dir():
+        return {}
     if not CONFIG_PATH.exists():
         return {}
     async with aiofiles.open(CONFIG_PATH, "r") as f:
@@ -15,6 +19,7 @@ async def load_config() -> dict:
 
 
 async def save_config(config: dict) -> None:
+    CONFIG_PATH.parent.mkdir(parents=True, exist_ok=True)
     async with aiofiles.open(CONFIG_PATH, "w") as f:
         await f.write(json.dumps(config, indent=2))