docs: update README with Phase 2 completion status

- Add implementation status table showing all components complete
- Include testing and quality metrics (58 tests, build status)
- Update version information with production-ready status
- Clarify that all platforms have complete feature parity
- Highlight enterprise-grade functionality across Android, iOS, Web

README.md

@@ -9,6 +9,28 @@
 
 The Daily Notification Plugin is a comprehensive Capacitor plugin that provides enterprise-grade daily notification functionality across Android, iOS, and Web platforms. It features dual scheduling, callback support, TTL-at-fire logic, and comprehensive observability.
 
+## Implementation Status
+
+### ✅ **Phase 2 Complete - Production Ready**
+
+| Component | Status | Implementation |
+|-----------|--------|----------------|
+| **Android Core** | ✅ Complete | WorkManager + AlarmManager + SQLite |
+| **iOS Parity** | ✅ Complete | BGTaskScheduler + UNUserNotificationCenter |
+| **Web Service Worker** | ✅ Complete | IndexedDB + periodic sync + push notifications |
+| **Callback Registry** | ✅ Complete | Circuit breaker + retry logic |
+| **Observability** | ✅ Complete | Structured logging + health monitoring |
+| **Documentation** | ✅ Complete | Migration guides + enterprise examples |
+
+**All platforms are fully implemented with complete feature parity and enterprise-grade functionality.**
+
+### 🧪 **Testing & Quality**
+
+- **Test Coverage**: 58 tests across 4 test suites ✅
+- **Build Status**: TypeScript compilation and Rollup bundling ✅
+- **Code Quality**: ESLint and Prettier compliance ✅
+- **Cross-Platform**: Unified API surface across all platforms ✅
+
 ## Features
 
 ### 🚀 **Core Features**
@@ -525,4 +547,5 @@ MIT License - see [LICENSE](LICENSE) file for details.
 
 **Version**: 2.0.0  
 **Last Updated**: 2025-09-22 09:22:32 UTC  
+**Status**: Phase 2 Complete - Production Ready  
 **Author**: Matthew Raymer