Refactor db error catch to one helper

core/economy.py

@@ -16,17 +16,13 @@ from typing import TypedDict
 import aiohttp
 
 from . import pb_client
+from .pb_client import DatabaseError
 
 import strings
 
 _txn_log = logging.getLogger("tipiCOIN.txn")
 
 
-class DatabaseError(Exception):
-    """Raised when PocketBase is unreachable or returns an error."""
-    pass
-
-
 def _txn(event: str, **fields) -> None:
     """Log a single economy transaction to the transactions logger."""
     body = "  ".join(f"{k}={v}" for k, v in fields.items())