🛡️ Sentinel: [CRITICAL] Fix Werkzeug interactive debugger exposure

[benpiper]

🚨 Severity: CRITICAL
💡 Vulnerability: Flask application exposed the Werkzeug interactive debugger on a public interface (0.0.0.0).
🎯 Impact: Unauthenticated attackers could execute arbitrary Python code remotely on the server.
🔧 Fix: Explicitly disabled debug mode (debug=False) in all application entry points.
✅ Verification: Ensured debug=True is no longer present in app.run calls.

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PR created automatically by Jules for task 14646361385655312598 started by @benpiper

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