[Feature]: [Feature Request] Export course package with interactive Agent scripts

### Problem or Motivation

I'm a trainer using OpenMAIC to create courses for my students.
After generating a course, I need to:
1. Share the interactive classroom with students for self-study
2. Use the AI agents as assistants during live training sessions

Exporting only PPT loses all the agent interactions, quiz logic, and dynamic content
that make OpenMAIC valuable.

### Proposed Solution

Add an export option that packages:
- Full course JSON (agent scripts, dialogue sequences, action timelines)
- A lightweight standalone HTML player that can run the course offline or be embedded
- Or alternatively, a shareable hosted link that doesn't require the student to have
an OpenMAIC account

### Alternatives Considered

自托管完整的 OpenMAIC 实例可以实现需求，但对于向非技术背景的学员
分享单节课程来说，成本太高、门槛太大。

### Area

Classroom generation

### Additional Context

- Using the web version at open.maic.chat
- Also exploring self-hosted deployment