OnlineChatModule type auto-detection logic enhancement

[jackyzzzk]

📌 PR 内容 / PR Description

• 对model_type识别逻辑进行补充，修复了由于用于输入大小写问题及模型名称不全面问题导致的type识别错误

🔍 相关 Issue / Related Issue

• fix 818

✅ 变更类型 / Type of Change

• 修复 Bug / Bug fix (non-breaking change that fixes an issue)
• 新功能 / New feature (non-breaking change that adds functionality)
• 重构 / Refactor (no functionality change, code structure optimized)
• 重大变更 / Breaking change (fix or feature that would cause existing functionality to change)
• 文档更新 / Documentation update (changes to docs only)
• 性能优化 / Performance optimization

🧪 如何测试 / How Has This Been Tested?

1. pytest tests/basic_tests/test_map_model.py

[JingofXin]

建议针对此次修复，加几个对应的模型名到测例中。