🛡️ Sentinel: [HIGH] Fix XSS vulnerability in confirm dialog

[thirdeyenation]

🚨 Severity: HIGH
💡 Vulnerability: XSS via unsafe innerHTML interpolation in showConfirmDialog
🎯 Impact: Malicious scripts could be executed if untrusted input is passed to dialog parameters
🔧 Fix: Implemented sanitizeHtml to clean the dialog content before DOM injection
✅ Verification: Verifiable via static analysis or testing the dialog with malicious input

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PR created automatically by Jules for task 8606964549932104885 started by @thirdeyenation

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