Agnext magentic one

[michalmar]

This pull request introduces a new Streamlit application to run a MagenticOne workflow based on user-provided instructions. The application includes functionalities to input instructions, run the workflow, and display logs and final results.

Key changes:

New Streamlit Application:

• Added Streamlit imports and initialized session state for instructions, running status, and final answer. (app-agnext.py)
• Created a user interface with a text input for instructions and a button to run the workflow. (app-agnext.py)
• Defined a function display_log_message to format and display log messages. (app-agnext.py)
• Implemented an asynchronous main function to initialize MagenticOne, run the task, and stream logs. (app-agnext.py)
• Integrated the workflow execution with Streamlit, displaying the final answer or an error message upon completion. (app-agnext.py)

[yanivvak]

Approved