feat: Enhance admin dashboard with user, team, and event statistics, and system health monitoring

TODO.md

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+# LeagueLedger - TODO List
+
+This document outlines upcoming tasks and improvements for the LeagueLedger application.
+
+## Admin Dashboard Enhancements
+
+- [ ] Add a settings section to manage configuration values
+- [ ] Create a system to invite other admins
+- [ ] Develop a more robust user management interface
+- [ ] Add user roles and permissions beyond just admin/non-admin
+- [x] Create a dashboard overview with system statistics
+- [ ] Add bulk operations for users and teams
+- [x] Basic CRUD operations for database models
+- [x] Add dashboard with system activity metrics and stats
+- [ ] Improve record filtering and searching capabilities
+- [ ] Add relationship handling in edit forms
+- [ ] Implement form validation with meaningful error messages
+- [ ] Add user action audit logging
+- [ ] Create specialized interfaces for common admin tasks
+- [ ] Add admin reports generation functionality
+- [ ] Implement system backup functionality from admin panel
+
+## Admin Panel Specific Features
+
+- [ ] **User Management**
+  - [ ] Add specialized user verification controls
+  - [ ] Implement password reset functionality
+  - [ ] Add user role assignment interface
+  - [ ] Create user activity logs viewer
+
+- [ ] **Team Management**
+  - [ ] Implement team member management interface
+  - [ ] Add team ownership transfer functionality
+  - [ ] Create team join request approval workflow
+  - [ ] Add team archiving functionality
+
+- [ ] **QR Code Management**
+  - [ ] Create QR code batch generation tool
+  - [ ] Implement QR code printing functionality
+  - [ ] Add QR code usage tracking dashboard
+  - [ ] Create QR code invalidation controls
+
+- [ ] **Event Management**
+  - [ ] Add event creation wizard
+  - [ ] Implement event QR set assignment interface
+  - [ ] Create event attendance tracking
+  - [ ] Add event results display
+
+- [ ] **System Configuration**
+  - [ ] Implement email settings management
+  - [ ] Add OAuth provider configuration interface
+  - [ ] Create appearance/branding settings
+  - [ ] Add general system settings controls
+
+## User Management & Profile Features
+
+- [ ] **Profile Management**
+  - [ ] Update profile picture functionality
+  - [ ] Change username capability
+  - [ ] Account deletion process
+  - [ ] Profile privacy settings
+  - [ ] Social media integration
+
+## Environment Variables & Configuration
+
+- [ ] Implement a database-backed settings storage system
+- [ ] Create a UI for managing environment variables in the admin panel
+- [ ] Add configuration for email templates
+- [ ] Add configuration for OAuth providers
+- [ ] Create backup/export functionality for configuration
+- [ ] Add validation for configuration values
+
+## Security Improvements
+
+- [ ] Add logging for administrative actions
+- [ ] Implement IP-based access restrictions for the setup page
+- [ ] Add two-factor authentication for admin users
+- [ ] Review password security policies
+- [ ] Implement rate limiting for login attempts
+- [ ] Set up regular security audits
+- [ ] Improve CSRF protection
+
+## User Experience Enhancements
+
+- [ ] Create a guided tour for new administrators
+- [ ] Add more visual feedback for administrative actions
+- [ ] Improve mobile responsiveness of admin interfaces
+- [ ] Implement notifications for important system events
+- [ ] Add keyboard shortcuts for common actions
+- [ ] Create a dark mode theme option
+- [ ] Improve accessibility of the application
+
+## System Health Monitoring
+
+- [ ] Add a status dashboard for admins
+- [ ] Implement database maintenance tools
+- [ ] Create backup/restore functionality
+- [ ] Set up regular health checks
+- [ ] Add monitoring for application errors
+- [ ] Create performance metrics tracking
+- [ ] Set up automated alerts for system issues
+
+## Team Management
+
+- [ ] Improve team join request workflow
+- [ ] Add team hierarchy options
+- [ ] Create team member roles beyond admin/member
+- [ ] Add team activity logs
+- [ ] Implement team communication tools
+- [ ] Add team profile customization options
+- [ ] Create team achievement badges
+
+## QR Code System
+
+- [ ] Add support for dynamic QR codes
+- [ ] Improve QR code generation options
+- [ ] Add QR code statistics and usage tracking
+- [ ] Create a QR code management dashboard
+- [ ] Support for bulk QR code generation
+- [ ] Add QR code categories and tagging
+- [ ] Implement QR code expiration and scheduling
+
+## Documentation
+
+- [ ] Update API documentation
+- [ ] Create user guides for different roles
+- [ ] Document database schema and relationships
+- [ ] Add developer onboarding documentation
+- [ ] Create deployment guides for different environments
+- [ ] Document system architecture and design decisions
+- [ ] Add troubleshooting guides
+
+## Testing
+
+- [ ] Expand automated test coverage
+- [ ] Create end-to-end testing workflows
+- [ ] Add performance benchmarking tests
+- [ ] Implement load testing for high-traffic scenarios
+- [ ] Set up continuous integration testing
+- [ ] Create testing documentation
+- [ ] Add visual regression testing
+
+## Internationalization
+
+- [ ] Complete translation of all UI elements
+- [ ] Add support for RTL languages
+- [ ] Implement locale-specific formatting
+- [ ] Add language selection UI
+- [ ] Create translation contribution guidelines
+- [ ] Support for multiple time zones
+- [ ] Add regional customization options
+
+## Infrastructure & Deployment
+
+- [ ] Optimize Docker configuration
+- [ ] Set up automated deployments
+- [ ] Implement proper staging environment
+- [ ] Create database migration tools
+- [ ] Add support for clustering/high availability
+- [ ] Implement CDN for static assets
+- [ ] Create backup and disaster recovery procedures