Sergei a1264631c0 Add encryption key cleanup on logout
- Clear master encryption key when user logs out
- Ensures WiFi passwords cannot be decrypted after logout
- Improves security by removing cryptographic material
- Complements existing WiFi password clearing on logout

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Co-Authored-By: Claude <noreply@anthropic.com>
2026-01-29 12:28:56 -08:00
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2026-01-29 12:28:56 -08:00