[Feature Request]: Redesign and refactor our agent module

[ZhenhangTung]

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Is your feature request related to a problem?

Describe the feature you'd like

• Building workflow and agentic flow in one canvas
• Support multi-agent architecture
• Support task type agent in our Begin component
• and more...

Describe implementation you've considered

No response

Documentation, adoption, use case

Additional information

No response

[ZhenhangTung]

• Display runtime logs when interacting with agents
• Developers now can see the chat logs when their users chat with Agent on the embedded page
• Redesign the UI and introduce dark mode