Enhance Tool Call Argument Handling for Ollama Integration

[vijaythecoder]

Issue:

• Fixed a bug where the field for tool calls was not always formatted correctly as a JSON object, leading to a error from the Ollama API.

Enhancements and Fixes:

1. ChatRequest Enhancements:

   • Modified the class in to ensure that the field is always a valid JSON object. This fix provides compatibility for the new which works offline.

2. ChatAssistant Updates:

   • Adjusted logic in the class in related to handling messages and tool calls.

3. Service Request Enhancements:

   • Updated the request handling in to improve argument handling and tool call structuring.

4. Onboarding Steps:

   • Added minor adjustments to the class in to ensure smooth user onboarding and configuration setup.

5. Database Configuration:

   • Updated to include additional database configuration options and ensure appropriate environment variable usage.

Testing:

• Reproduced the issue and verified that the error was resolved after the enhancements.
• Ensured that the arguments for tool calls are now correctly formatted as JSON objects.

Additional Information:

• This PR is created by GPT-4o. It has written the entire PR and solved the issue for Ollama with proper user input.

The provided changes ensure that the integration with Ollama works seamlessly with the appropriate argument formats and additional improvements in services and database configuration.