## Summary
- Adds comprehensive planning document for cloud sandbox runtime mode
feature
- Generated from collaborative planning session using dyad:swarm-to-plan
skill
- Outlines complete feature design, UX flows, technical architecture,
and implementation phases

## Test plan
- Document is for planning purposes and doesn't require functional
testing
- Review content for completeness and accuracy of scope and technical
approach
- Validate that implementation phases are well-sequenced and address all
scope items

🤖 Generated with [Claude Code](https://claude.com/claude-code)
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