BE40: Profile Recovery & User Preference Flow Stabilization

[TienNguyen3711]

Summary

• make profile reads tolerant of legacy plaintext values in sensitive fields
• include encrypted profile columns in profile fetch/update queries
• fall back to plaintext profile columns when encrypted payload decryption fails, instead of returning a 500

What files changed

• model/getUserProfile.js
• model/updateUserProfile.js
• services/userProfileService.js

Testing

• node -c model/getUserProfile.js
• node -c model/updateUserProfile.js
• node -c services/userProfileService.js
• not run end-to-end