Allow create super user when start rag server. (#10634)

### What problem does this PR solve?

New options for rag server scripts to create the super admin user when
start server.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

---------

Co-authored-by: Zhichang Yu <yuzhichang@gmail.com>
Co-authored-by: Jin Hai <haijin.chn@gmail.com>

api/ragflow_server.py

@@ -37,7 +37,7 @@ from api.db.services.document_service import DocumentService
 from common.file_utils import get_project_base_directory
 from common import settings
 from api.db.db_models import init_database_tables as init_web_db
-from api.db.init_data import init_web_data
+from api.db.init_data import init_web_data, init_superuser
 from common.versions import get_ragflow_version
 from common.config_utils import show_configs
 from common.mcp_tool_call_conn import shutdown_all_mcp_sessions
@@ -109,11 +109,16 @@ if __name__ == '__main__':
     parser.add_argument(
         "--debug", default=False, help="debug mode", action="store_true"
     )
+    parser.add_argument(
+        "--init-superuser", default=False, help="init superuser", action="store_true"
+    )
     args = parser.parse_args()
     if args.version:
         print(get_ragflow_version())
         sys.exit(0)
 
+    if args.init_superuser:
+        init_superuser()
     RuntimeConfig.DEBUG = args.debug
     if RuntimeConfig.DEBUG:
         logging.info("run on debug mode")