Enhance Langchain compatibility, update tool detection, add examples …

…1/Made minor adjustments to improve compatibility with the Langchain library 2/Increased the number of examples to better identify functionality 3/Updated tool detection handling to set "content" to an empty string instead of "Non" due to differences in the Langchain library 4/Added a new "groqchain" endpoint 5/Included an additional example for further clarity

- Significant imporvement on tool-detection mechanis. Add the ability…

… of re-evaluation. - Add a few shot examples. - Refactor tools handler class. - Update assistant example in cookbook.

Release v0.0.2: - Added a new example in the cookbook folder demonstr…

…ating how to create an AI assistant using the proxy function, grok, and fi data. - Improved the logic for detecting tools, enhancing the accuracy and reliability of tool identification. - Performed minor code refactoring to improve overall code quality and maintainability.

Release version 0.0.2