feat(config/): add config/ directory

src/judas_server/backend/backend_server.py

@@ -77,7 +77,7 @@ class BackendServer:
         known_clients: dict[str, dict[str, str | float]] = {}
 
         try:
-            with open("cache/known_clients.yaml", "r") as f:
+            with open("config/known_clients.yaml", "r") as f:
                 data = yaml.safe_load(f)
 
                 if not isinstance(data, dict):
@@ -114,7 +114,7 @@ class BackendServer:
             self.logger.warning(
                 "known_clients.yaml not found, creating empty known clients list"
             )
-            with open("cache/known_clients.yaml", "w") as f:
+            with open("config/known_clients.yaml", "w") as f:
                 yaml.safe_dump({"known_clients": {}}, f)
         except Exception as e:
             self.logger.error(f"Error loading known clients: {e}")
@@ -124,7 +124,7 @@ class BackendServer:
 
     def _save_known_clients(self) -> None:
         """Save the list of known clients to a YAML file."""
-        with open("cache/known_clients.yaml", "w") as f:
+        with open("config/known_clients.yaml", "w") as f:
             yaml.safe_dump({"known_clients": self.known_clients}, f)
         self.logger.debug("Saved known clients")