Fix #388: Implement proper export workflow in blog-writer agent

[sanjana990]

🐛 Problem Context

Issue: The export functionality in the blog-writer agent was not working correctly.

Technical Root Cause:

• The social_media_writer sub-agent does NOT have access to the save_blog_post_to_file tool
• Only the main interactive_blogger_agent has the export tool
• When users completed the social media step, the social_media_writer would respond to save requests with "I can't save files directly"
• The main agent was not properly listening for or handling export requests after the social media step
• Users had no way to save their final blog post after completing the full workflow

What was happening:

1. User completes: Plan → Write → Edit → Social Media
2. User says: "save this file" or "export this"
3. social_media_writer responds: "I can't save files directly" ❌
4. Main agent never takes over the export request ❌
5. User cannot save their blog post ❌

🔧 Solution Implemented

What I fixed:

• Added Final Version Confirmation step after social media in the main agent
• Export is now only available after user confirms final version
• Main agent now properly handles export requests at the right time
• Clean workflow: Social Media → Final Confirmation → Export

New Workflow:

1. Social Media step completes
2. Main agent asks: "Is this the final version, or would you like to make any changes?"
3. If "final version" → Main agent asks: "Would you like me to save this blog post to a file?"
4. If "changes" → Go back to editing step

Key Fix: The main agent now properly listens for and handles export requests at the appropriate time, rather than leaving it to the sub-agent that doesn't have the tool.

✅ Testing Results

• Main agent now properly asks for final version confirmation
• Export only available after final version confirmation
• Main agent handles export requests correctly
• Export functionality works as expected

The export functionality now works as intended! 🎉

Fixes #388