GitHub CLI with complex markdown body

[konard]

🐛 Bug Description

GitHub CLI commands fail when trying to pass complex markdown content through the --body parameter due to shell escaping issues with backticks, quotes, and special characters.

🔴 Impact

• Can't create GitHub issues/PRs with code examples programmatically
• Markdown documentation can't be passed through CLI
• CI/CD workflows that create issues fail with complex content

📝 Problem Details

When using `gh issue create --body` with markdown containing:

• Code blocks with triple backticks
• Inline code with single backticks
• Dollar signs with variables (${var})
• Mixed quotes types
• Multi-line content

The shell interprets these special characters causing command failure.

🔧 Workaround

Use `--body-file` parameter instead:
```javascript
// Write content to temp file first
await fs.writeFile(tempFile, markdownContent);
// Use --body-file instead of --body
await $`gh issue create --body-file ${tempFile}`;
```

🔗 References

• Full test: https://github.com/deep-assistant/hive-mind/blob/main/command-stream-issues/issue-04-github-cli-body.mjs