fix(apple): correct SPM permission flag mapping for photos and calendarWriteOnly

- PERMISSION_PHOTOS now triggers on NSPhotoLibraryAddUsageDescription alone,
  since PhotoPermissionStrategy (which handles photosAddOnly) compiles under
  PERMISSION_PHOTOS — without this, photosAddOnly silently fell back to
  UnknownPermissionStrategy when NSPhotoLibraryUsageDescription was absent
- PERMISSION_EVENTS_FULL_ACCESS now also triggers on
  NSCalendarsWriteOnlyAccessUsageDescription (iOS 17+), enabling calendarWriteOnly
  which requires PERMISSION_EVENTS || PERMISSION_EVENTS_FULL_ACCESS in native code
- Sync podspec version to 9.4.8
- Restore NSCameraUsageDescription in example Info.plist (lost during rewrite)
- Add NSCalendarsWriteOnlyAccessUsageDescription to example Info.plist

Author: TheoGermain

permission_handler_apple/example/ios/Runner/Info.plist

@@ -34,6 +34,10 @@
 	<string>Calendar full access</string>
 	<key>NSCalendarsUsageDescription</key>
 	<string>Calendars</string>
+	<key>NSCalendarsWriteOnlyAccessUsageDescription</key>
+	<string>Calendar write only</string>
+	<key>NSCameraUsageDescription</key>
+	<string>camera</string>
 	<key>NSContactsUsageDescription</key>
 	<string>contacts</string>
 	<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>

permission_handler_apple/ios/permission_handler_apple.podspec

@@ -3,7 +3,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'permission_handler_apple'
-  s.version          = '9.3.0'
+  s.version          = '9.4.8'
   s.summary          = 'Permission plugin for Flutter.'
   s.description      = <<-DESC
 Permission plugin for Flutter. This plugin provides a cross-platform (iOS, Android) API to request and check permissions.

permission_handler_apple/ios/permission_handler_apple/Package.swift

@@ -47,10 +47,11 @@ let permissionDefines: [CSetting] = [
     .define("PERMISSION_EVENTS",
             to: enabled("PERMISSION_EVENTS",
                         plistKeys: "NSCalendarsUsageDescription")),
-    // dart: PermissionGroup.calendarFullAccess (iOS 17+)
+    // dart: PermissionGroup.calendarFullAccess (iOS 17+) / PermissionGroup.calendarWriteOnly (iOS 17+)
     .define("PERMISSION_EVENTS_FULL_ACCESS",
             to: enabled("PERMISSION_EVENTS_FULL_ACCESS",
-                        plistKeys: "NSCalendarsFullAccessUsageDescription")),
+                        plistKeys: "NSCalendarsFullAccessUsageDescription",
+                                   "NSCalendarsWriteOnlyAccessUsageDescription")),
     // dart: PermissionGroup.reminders
     .define("PERMISSION_REMINDERS",
             to: enabled("PERMISSION_REMINDERS",
@@ -71,10 +72,13 @@ let permissionDefines: [CSetting] = [
     .define("PERMISSION_SPEECH_RECOGNIZER",
             to: enabled("PERMISSION_SPEECH_RECOGNIZER",
                         plistKeys: "NSSpeechRecognitionUsageDescription")),
-    // dart: PermissionGroup.photos
+    // dart: PermissionGroup.photos / PermissionGroup.photosAddOnly
+    // NSPhotoLibraryAddUsageDescription alone also enables PhotoPermissionStrategy because the
+    // native code compiles photosAddOnly support under PERMISSION_PHOTOS.
     .define("PERMISSION_PHOTOS",
             to: enabled("PERMISSION_PHOTOS",
-                        plistKeys: "NSPhotoLibraryUsageDescription")),
+                        plistKeys: "NSPhotoLibraryUsageDescription",
+                                   "NSPhotoLibraryAddUsageDescription")),
     // dart: PermissionGroup.photosAddOnly
     .define("PERMISSION_PHOTOS_ADD_ONLY",
             to: enabled("PERMISSION_PHOTOS_ADD_ONLY",