GitHub search queries with labels containing spaces fail

[konard]

🐛 Bug Description

GitHub search queries with labels containing spaces fail due to multiple layers of escaping issues when passed through command-stream.

🔴 Impact

• Can't search for issues with multi-word labels
• GitHub CLI queries fail with complex search terms
• Automation of issue management is limited

📝 Problem Example

```javascript
const label = "help wanted";
// ❌ Fails due to escaping issues
await $`gh issue list --label "${label}"`;
// The spaces in the label cause parsing problems
```

🔧 Root Cause

Multiple layers of escaping between:

1. JavaScript string escaping
2. Shell escaping
3. GitHub CLI parameter parsing

🔗 References

• Full test: https://github.com/deep-assistant/hive-mind/blob/main/command-stream-issues/issue-12-github-search-escaping.mjs