📇 refactor: Improve State mgmt. for File uploads and Tool Auth

[danny-avila]

Summary

I fixed several state management issues affecting file uploads and tool authentication flows in the application.

• Reset ephemeral agent state for tools when authentication fails to prevent incorrect UI state persistence
• Update ephemeral agent state specifically for execute_code tool when file upload errors occur
• Ensure loading state is correctly set to false when files array is empty
• Set loading state to true when files are still in progress of uploading

Change Type

• Bug fix (non-breaking change which fixes an issue)

Testing

I tested these changes by:

1. Attempting to use tools that require authentication without being authenticated
2. Uploading files with the execute_code tool enabled and triggering upload failures
3. Monitoring the loading state when clearing all files and during file upload progress

Test Configuration:

• Tested with various file types and sizes
• Tested authentication flow with multiple tool configurations
• Verified state consistency across component re-renders

Checklist

• My code adheres to this project's style guidelines
• I have performed a self-review of my own code
• My changes do not introduce new warnings
• Local unit tests pass with my changes

[DmitriyAlergant]

Thanks! Impressive speed to react and resolve the otherwise minor issue. Genuinely impressed.

Thank you for your work.