Add MagenticOneGroupChat to AGS

[husseinmozannar]

Add MagenticOneGroupChat to Autogen Studio.

• Fixes Add Magentic-One Orchestrator to AutoGen Studio #4563
• fixes M1 orchestrator handling message types beyond text and mm message
• fix connection.py in AGS for typing
• Add file surfer and magentic one coder

Remaining issues:

• markdown rendering of Orchestrator messages
• code blocks for the coder and other agents (possibly fixed with the markdown)
• adding code execution agent to complete magentic one
• have option to hide side view of agent graph so you can focus on agent messages (I think by default the graph should be hidden, but not a big deal)

[husseinmozannar]

Testing config

{
"version": "1.0.0",
"component_type": "team",
"name": "m1_team",
"participants": [
{
"component_type": "agent",
"name": "writing_agent",
"agent_type": "AssistantAgent",
"system_message": "You are a helpful assistant. Solve tasks carefully. When done respond with TERMINATE",
"model_client": {
"component_type": "model",
"model": "gpt-4o-2024-08-06",
"model_type": "OpenAIChatCompletionClient"
}
},
{
"component_type": "agent",
"name": "websurfer_agent",
"agent_type": "MultimodalWebSurfer",
"model_client": {
"component_type": "model",
"model": "gpt-4o-2024-08-06",
"model_type": "OpenAIChatCompletionClient"
},
"headless": false,
"logs_dir": "logs",
"downloads_folder": "logs",
"to_save_screenshots": false,
"use_ocr": false,
"animate_actions": false
}
],
"team_type": "MagenticOneGroupChat",
"model_client": {
"component_type": "model",
"model": "gpt-4o-2024-08-06",
"model_type": "OpenAIChatCompletionClient"
},
"max_turns": 3
}

[husseinmozannar]

Fixes to connection.py are crucial to avoid typing errors that look like:

Message formatting error: Subscripted generics cannot be used with class and instance checks
Stream error for run bf7aa248-c9bc-430d-b5fa-6d7cc657396f: Subscripted generics cannot be used with class and instance checks

it is the order of checking isinstance, it is a bit weird

[victordibia]

Thanks @husseinmozannar .

Merging this in ..
Will make some minor fixes to visuals for the m1 orchestrator node in the node flow diagram later.

At somepoint, once we have implemented #4439 ... we can refactor component_factory to use that mechanism (we will need to refactor M1 orchestrator and agents to implement their own serialization and loading methods).