Look for roo rules when executing /init

Question

`/init` currently looks for rules of other agentic assistants, for example

```
⏺ Search(pattern: "**/.cursorrules")
  ⎿  Found 0 files

⏺ Search(pattern: "**/.cursor/**")
  ⎿  Found 0 files

⏺ Search(pattern: "**/.github/copilot-instructions.md")
  ⎿  Found 0 files 
```

Check for roo rules, with something like:

```bash
find . -path '*/.roo/*' -type f -name '*.md'
```