Windows users experience plan-phase freezes due to Claude Code stdio
deadlocks with MCP servers. When a subagent hangs, the orchestrator
blocks indefinitely with no timeout or error.
Adds:
- Windows troubleshooting section to plan-phase.md with:
- Orphaned process cleanup (PowerShell commands)
- Stale task directory cleanup (~/.claude/tasks/)
- MCP server reduction advice
- --skip-research fallback to reduce agent chain
- Stale task directory detection to health.md (I002 diagnostic)
- Reports count of stale dirs on --repair
- Safe cleanup guidance
Closes#732