feat(ios): implement getExactAlarmStatus and openExactAlarmSettings methods

Implemented exact alarm status methods matching Android functionality:

getExactAlarmStatus():
- Returns exact alarm scheduling capability information
- iOS always supports exact alarms (UNUserNotificationCenter)
- Returns supported=true, enabled based on notification authorization
- No fallback window needed (exact scheduling always available)
- Matches Android API structure

openExactAlarmSettings():
- Opens iOS app notification settings
- iOS doesn't have separate exact alarm settings like Android
- Opens general app settings instead
- Provides API compatibility with Android

iOS Adaptations:
- Exact alarms always supported (no permission needed)
- Enabled status based on notification authorization
- No fallback window (precise scheduling always available)
- Opens app settings instead of exact alarm settings

Progress: 32/52 methods implemented (62% complete)

ios/Plugin/DailyNotificationPlugin.swift

@@ -1278,6 +1278,76 @@ public class DailyNotificationPlugin: CAPPlugin {
         }
     }
     
+    /**
+     * Get exact alarm status
+     * 
+     * Returns detailed information about exact alarm scheduling capability.
+     * On iOS, exact alarms are always supported via UNUserNotificationCenter.
+     * 
+     * Equivalent to Android's getExactAlarmStatus method.
+     */
+    @objc func getExactAlarmStatus(_ call: CAPPluginCall) {
+        print("DNP-PLUGIN: Getting exact alarm status")
+        
+        // iOS always supports exact alarms via UNUserNotificationCenter
+        // Background App Refresh is the closest equivalent to Android's exact alarm permission
+        // but we can't check it directly - we assume it's enabled if notifications are authorized
+        notificationCenter.getNotificationSettings { settings in
+            let notificationsEnabled = settings.authorizationStatus == .authorized
+            
+            // iOS supports exact alarms (UNUserNotificationCenter provides precise scheduling)
+            let supported = true
+            let enabled = notificationsEnabled // Assume enabled if notifications are authorized
+            let canSchedule = enabled
+            let fallbackWindow = "0 minutes" // No fallback needed on iOS - exact scheduling is always available
+            
+            let result: [String: Any] = [
+                "supported": supported,
+                "enabled": enabled,
+                "canSchedule": canSchedule,
+                "fallbackWindow": fallbackWindow
+            ]
+            
+            print("DNP-PLUGIN: Exact alarm status: supported=\(supported), enabled=\(enabled), canSchedule=\(canSchedule)")
+            
+            DispatchQueue.main.async {
+                call.resolve(result)
+            }
+        }
+    }
+    
+    /**
+     * Open exact alarm settings
+     * 
+     * Opens iOS notification settings for the app.
+     * iOS doesn't have separate exact alarm settings like Android.
+     * 
+     * Equivalent to Android's openExactAlarmSettings method.
+     */
+    @objc func openExactAlarmSettings(_ call: CAPPluginCall) {
+        print("DNP-PLUGIN: Opening exact alarm settings (iOS: opens app notification settings)")
+        
+        // iOS doesn't have separate exact alarm settings
+        // Open app notification settings instead
+        if let settingsUrl = URL(string: UIApplication.openSettingsURLString) {
+            if UIApplication.shared.canOpenURL(settingsUrl) {
+                UIApplication.shared.open(settingsUrl) { success in
+                    if success {
+                        print("DNP-PLUGIN: Settings opened successfully")
+                        call.resolve()
+                    } else {
+                        print("DNP-PLUGIN: Failed to open settings")
+                        call.reject("Failed to open settings")
+                    }
+                }
+            } else {
+                call.reject("Cannot open settings URL")
+            }
+        } else {
+            call.reject("Invalid settings URL")
+        }
+    }
+    
     // MARK: - Private Implementation Methods
     
     private func setupBackgroundTasks() {