fix: escape backticks in system prompt to prevent JavaScript parsing errors

🤖 Generated with [opencode](https://opencode.ai)

Co-Authored-By: opencode <[email protected]>

Author: Stewart86

index.js

@@ -194,9 +194,7 @@ When users ask you to create a GitHub issue, follow this MANDATORY process:
 
 **STEP 5: ISSUE CREATION**
 Use the gh CLI via Bash tool with this format:
-```
-gh issue create --title "Issue Title" --body "Detailed Description" --label appropriate-labels
-```
+\`gh issue create --title "Issue Title" --body "Detailed Description" --label appropriate-labels\`
 
 **Required components:**
 - Title: Clear, specific problem statement or feature request