### What problem does this PR solve?
https://github.com/infiniflow/ragflow/issues/8467
when add llm the llm_name will like "llm1___OpenAI-API"
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| .. | ||
| services | ||
| __init__.py | ||
| db_models.py | ||
| db_utils.py | ||
| init_data.py | ||
| reload_config_base.py | ||
| runtime_config.py | ||