🛡️ Sentinel: [CRITICAL] Fix Werkzeug interactive debugger exposure

[benpiper]

🚨 Severity: CRITICAL
💡 Vulnerability: Flask application was running with debug=True while bound to a public interface (0.0.0.0). This exposes the Werkzeug interactive debugger, which can allow an attacker to execute arbitrary Python code remotely.
🎯 Impact: Remote Code Execution (RCE) allowing full system compromise.
🔧 Fix: Changed debug=True to debug=False in web_app/app.py and web_app/run.py to disable the interactive debugger.
✅ Verification: Verified the entry points no longer run with debug=True.

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PR created automatically by Jules for task 3834959748528762244 started by @benpiper

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