修复货币数字错误和没有货币种类问题，修复UTC和本地时间混用，改用UTC

sync_to_cloud_mysql.py

@@ -84,7 +84,7 @@ def load_config() -> tuple[dict, dict]:
 
 
 def connect_mysql(cfg: dict):
-    return pymysql.connect(
+    conn = pymysql.connect(
         host=cfg["host"],
         port=cfg["port"],
         user=cfg["user"],
@@ -94,6 +94,9 @@ def connect_mysql(cfg: dict):
         autocommit=True,
         cursorclass=pymysql.cursors.DictCursor,
     )
+    with conn.cursor() as cur:
+        cur.execute("SET time_zone = '+00:00'")
+    return conn
 
 
 def ensure_cloud_tables(cloud_conn):