chore: remove unused model configuration from environment file (#145)

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## Summary by CodeRabbit

- **Documentation**
- Revamped the project overview with a clear title, reorganized sections
highlighting key features, architecture, system requirements,
development tools, and additional resources.
- Enhanced installation instructions, troubleshooting guidance, and URLs
for accessing different components.
  
- **Chores**
- Streamlined configuration by removing redundant AI model integration
settings.



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