docs: add comprehensive static daily reminders documentation

- Add static daily reminders to README.md core features and API reference
- Create detailed usage guide in USAGE.md with examples and best practices
- Add version 2.1.0 changelog entry documenting new reminder functionality
- Create examples/static-daily-reminders.ts with complete usage examples
- Update test-apps README to include reminder testing capabilities

The static daily reminder feature provides simple daily notifications
without network content dependency, supporting cross-platform scheduling
with rich customization options.

README.md

@@ -39,6 +39,7 @@ The Daily Notification Plugin is a comprehensive Capacitor plugin that provides
 - **TTL-at-Fire Logic**: Content validity checking at notification time
 - **Callback System**: HTTP, local, and queue callback support
 - **Circuit Breaker Pattern**: Automatic failure detection and recovery
+- **Static Daily Reminders**: Simple daily notifications without network content
 - **Cross-Platform**: Android, iOS, and Web implementations
 
 ### 📱 **Platform Support**
@@ -54,6 +55,15 @@ The Daily Notification Plugin is a comprehensive Capacitor plugin that provides
 - **Error Handling**: Exponential backoff and retry logic
 - **Security**: Encrypted storage and secure callback handling
 
+### ⏰ **Static Daily Reminders**
+
+- **No Network Required**: Completely offline reminder notifications
+- **Simple Scheduling**: Easy daily reminder setup with HH:mm time format
+- **Rich Customization**: Customizable title, body, sound, vibration, and priority
+- **Persistent Storage**: Survives app restarts and device reboots
+- **Cross-Platform**: Consistent API across Android, iOS, and Web
+- **Management**: Full CRUD operations for reminder management
+
 ## Installation
 
 ```bash
@@ -130,6 +140,45 @@ function saveToDatabase(event: CallbackEvent) {
 }
 ```
 
+### Static Daily Reminders
+
+For simple daily reminders that don't require network content:
+
+```typescript
+import { DailyNotification } from '@timesafari/daily-notification-plugin';
+
+// Schedule a simple daily reminder
+await DailyNotification.scheduleDailyReminder({
+  id: 'morning_checkin',
+  title: 'Good Morning!',
+  body: 'Time to check your TimeSafari community updates',
+  time: '09:00',           // HH:mm format
+  sound: true,
+  vibration: true,
+  priority: 'normal',
+  repeatDaily: true
+});
+
+// Get all scheduled reminders
+const result = await DailyNotification.getScheduledReminders();
+console.log('Scheduled reminders:', result.reminders);
+
+// Update an existing reminder
+await DailyNotification.updateDailyReminder('morning_checkin', {
+  title: 'Updated Morning Reminder',
+  time: '08:30'
+});
+
+// Cancel a reminder
+await DailyNotification.cancelDailyReminder('morning_checkin');
+```
+
+**Key Benefits of Static Reminders:**
+- ✅ **No network dependency** - works completely offline
+- ✅ **No content cache required** - direct notification display
+- ✅ **Simple API** - easy to use for basic reminder functionality
+- ✅ **Persistent** - survives app restarts and device reboots
+
 ## API Reference
 
 ### Core Methods
@@ -257,6 +306,55 @@ const status = await DailyNotification.getDualScheduleStatus();
 - **HTTPS**: Required for Service Worker and push notifications
 - **Browser Support**: Chrome 40+, Firefox 44+, Safari 11.1+
 
+### Static Daily Reminder Methods
+
+#### `scheduleDailyReminder(options)`
+
+Schedule a simple daily reminder without network content.
+
+```typescript
+await DailyNotification.scheduleDailyReminder({
+  id: string;              // Unique reminder identifier
+  title: string;           // Notification title
+  body: string;            // Notification body
+  time: string;           // Time in HH:mm format (e.g., "09:00")
+  sound?: boolean;        // Enable sound (default: true)
+  vibration?: boolean;    // Enable vibration (default: true)
+  priority?: 'low' | 'normal' | 'high'; // Priority level (default: 'normal')
+  repeatDaily?: boolean;  // Repeat daily (default: true)
+  timezone?: string;      // Optional timezone
+});
+```
+
+#### `cancelDailyReminder(reminderId)`
+
+Cancel a scheduled daily reminder.
+
+```typescript
+await DailyNotification.cancelDailyReminder('morning_checkin');
+```
+
+#### `getScheduledReminders()`
+
+Get all scheduled reminders.
+
+```typescript
+const result = await DailyNotification.getScheduledReminders();
+console.log('Reminders:', result.reminders);
+```
+
+#### `updateDailyReminder(reminderId, options)`
+
+Update an existing daily reminder.
+
+```typescript
+await DailyNotification.updateDailyReminder('morning_checkin', {
+  title: 'Updated Title',
+  time: '08:30',
+  priority: 'high'
+});
+```
+
 ## Configuration
 
 ### Android Configuration