[Bug] Permission matcher fails to parse multiline bash commands with markdown formatting

Bug Description
Claude will write permissions to the settings file that it cannot consume:

{
    "permissions": {
        "allow": [
            "Bash(/tmp/test-report.md << 'EOF'\n# Bug Report\n\nThis report has **markdown bold** list formatting and may be misinterpreted by the permission matcher.\n\n## Details\n\n- **Item one:** first\n- **Item two:** second\n- **Item three:** third\n\nEOF)"
        ],
        "deny": []
    }
}

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.39
• Feedback ID: 453eb762-5170-4a3e-b6ff-5807e1a1510b