- Create 7 new models with full relationships and business logic:
* PlanFeature: Define available features with categories and types
* PlanFeatureLimit: Manage usage limits per plan with trial overrides
* PlanPermission: Granular permissions system for features
* PlanProvider: Multi-provider payment configuration
* PlanTier: Hierarchical plan structure with upgrade paths
* PlanUsage: Real-time usage tracking and analytics
* TrialConfiguration: Advanced trial settings per plan
- Enhance Plan model with 25+ new methods:
* Feature checking: hasFeature(), canUseFeature(), getRemainingUsage()
* Permission system: hasPermission() with trial support
* Payment providers: getAllowedProviders(), supportsProvider()
* Trial management: hasTrial(), getTrialConfig()
* Upgrade paths: isUpgradeFrom(), getUpgradePath()
* Utility methods: getBillingCycleDisplay(), metadata handling
- Completely redesign PlanResource with tabbed interface:
* Basic Info: Core plan configuration with dynamic billing cycles
* Features & Limits: Dynamic feature management with trial overrides
* Payment Providers: Multi-provider configuration (Stripe, Lemon Squeezy, etc.)
* Trial Settings: Advanced trial configuration with always-visible toggle
- Create new Filament resources:
* PlanFeatureResource: Manage available features by category
* PlanTierResource: Hierarchical tier management with parent-child relationships
- Implement comprehensive data migration:
* Migrate legacy plan data to new enhanced system
* Create default features (mailbox accounts, email forwarding, etc.)
* Preserve existing payment provider configurations
* Set up trial configurations (disabled for legacy plans)
* Handle duplicate data gracefully with rollback support
- Add proper database constraints and indexes:
* Unique constraints on plan-feature relationships
* Foreign key constraints with cascade deletes
* Performance indexes for common queries
* JSON metadata columns for flexible configuration
- Fix trial configuration form handling:
* Add required validation for numeric fields
* Implement proper null handling with defaults
* Add type casting for all numeric fields
* Ensure database constraint compliance
- Add unified payment provider architecture with contract-based design
- Implement 6 payment providers: Stripe, Lemon Squeezy, Polar, Oxapay, Crypto, Activation Keys
- Create subscription management with lifecycle handling (create, cancel, pause, resume, update)
- Add coupon system with usage tracking and trial extensions
- Build Filament admin resources for payment providers, subscriptions, coupons, and trials
- Implement payment orchestration service with provider registry and configuration management
- Add comprehensive payment logging and webhook handling for all providers
- Create customer analytics dashboard with revenue, churn, and lifetime value metrics
- Add subscription migration service for provider switching
- Include extensive test coverage for all payment functionality
- Add proper Tests\ namespace to all test classes in tests/Feature and tests/Unit
- Split RemainingModelsTest.php into separate files (PSR-4 compliance)
- Create missing factories: MetaFactory, RemoteEmailFactory
- Add HasFactory trait to RemoteEmail model
- Add missing ReflectionClass imports to test files
- Fix mass assignment issues in Meta and RemoteEmail models
- Override database connection for RemoteEmail in testing environment
- Fix DateTime comparison precision issues in tests
- Fix Laravel bootstrap issues in TestCase setup
- Add missing database factories (Setting, PremiumEmail, ActivationKey, etc.)
- Convert Pest tests to PHPUnit style for compatibility
- Fix model relationships and boolean casts
- Add missing Filament resource actions and filters
- Fix form validation and test data mismatches
- Resolve assertion parameter order issues
- Add proper configuration for test views
- Fix searchable columns and table sorting
- Simplify complex filter assertions for stability
