Automatic quote addition in interpolation causes issues

[konard]

🐛 Bug Description

command-stream automatically adds quotes to interpolated values in unexpected ways, causing double-quoting issues and command failures.

🔴 Impact

• Commands with pre-quoted arguments fail
• Complex command construction becomes unpredictable
• Shell scripts behave differently than expected

📝 Problem Example

```javascript
const arg = '"already quoted"';
// ❌ Gets double-quoted
await $`echo ${arg}`;
// Results in: echo ''"already quoted"''
```

🔧 Root Cause

Automatic quoting mechanism doesn't detect already-quoted strings, leading to double-quoting.

🔗 References

• Full test: https://github.com/deep-assistant/hive-mind/blob/main/command-stream-issues/issue-09-auto-quoting.mjs