Feature: Advanced User Management Features

Overview

Add comprehensive user account management features to the Settings page for authenticated users.

Parent Issue

Part of #37 - Add Settings Page with Authentication and User Management

Current Status

• Basic authentication is implemented
• User preferences (theme, currency, notifications) are working
• Missing advanced account management features

Requirements

Profile Management

• Profile Editing Interface
  • Change display name/username
  • Update email address (with verification)
  • Profile avatar upload and management
  • Profile information display in Settings

Password Management

• Change Password Interface
  • Current password verification
  • New password input with strength indicator
  • Password confirmation
  • Integration with existing password reset flow

Account Security

• Account Deletion
  • Delete account option in Settings
  • Confirmation flow with password verification
  • Data deletion warning and consequences
  • Immediate logout after deletion
  • Optional data export before deletion

Security Settings

• Login History (optional)
  • Display recent login sessions
  • Device/location information
  • "Sign out all devices" option

Data Management

• Export User Data
  • Download spending data as CSV/JSON
  • Export user preferences and categories
  • Integration with existing data export (Add data export functionality #11)

Technical Implementation

Components Required

• ProfileEditModal.vue - Profile editing interface
• PasswordChangeModal.vue - Password change form
• AccountDeletionModal.vue - Account deletion confirmation
• DataExportModal.vue - Data export options

Backend Integration

• Update useAuth.ts with new user management functions
• Profile update API integration with Supabase
• Account deletion API with proper cleanup
• Password change functionality
• Data export utilities

Database Updates

• User profile fields (name, avatar_url) if not exists
• Account deletion cleanup procedures
• Data export query optimization

Acceptance Criteria

• Users can edit their profile information
• Password change works with proper validation
• Account deletion removes all user data safely
• Profile changes are reflected immediately in UI
• Proper error handling and user feedback
• Mobile-responsive design consistent with Settings page
• Confirmation dialogs for destructive actions
• Data integrity maintained during operations

Security Considerations

• Password verification required for sensitive operations
• Proper data cleanup on account deletion
• Secure file upload for profile avatars
• Rate limiting for profile update requests
• Audit trail for account changes

UI/UX Requirements

• Clear section organization in Settings page
• Appropriate warning messages for destructive actions
• Loading states for async operations
• Success/error feedback for all operations
• Consistent with existing Ionic design patterns

Priority

Medium - Enhanced user experience, not core functionality

Related Issues

• Add Settings Page with Authentication and User Management #37 - Parent issue for Settings page
• Add Two-Factor Authentication (2FA) Support #39 - Two-Factor Authentication
• Implement Phone SMS Authentication #44 - Phone SMS Authentication
• Add data export functionality #11 - Data export functionality (can be integrated)

Implementation Order

1. Phase 1: Profile editing (name, email)
2. Phase 2: Password change interface
3. Phase 3: Account deletion with safeguards
4. Phase 4: Advanced features (login history, enhanced exports)

🤖 Generated with Claude Code

Co-Authored-By: Claude noreply@anthropic.com