feat(ios): create iOS test app structure and synchronization documentation

Created standalone iOS test app structure matching android-test-app:
- Added ios-test-app directory with README, setup guide, and build scripts
- Created comprehensive iOS synchronization status documentation
- Documented API method gaps between Android (52) and iOS (9 methods)
- Added iOS setup guide for Vue 3 test app

New files:
- test-apps/ios-test-app/ - Standalone iOS test app structure
- docs/IOS_SYNC_STATUS.md - Detailed API comparison and status tracking
- docs/IOS_SYNC_SUMMARY.md - Summary of iOS synchronization work
- test-apps/daily-notification-test/docs/IOS_SETUP.md - Vue app iOS setup

iOS test environments are now ready for setup. Test apps need Xcode project
generation via Capacitor CLI or copying from ios/App.

Next steps: Generate Xcode projects and implement missing API methods.

test-apps/ios-test-app/SETUP.md

@@ -0,0 +1,156 @@
+# iOS Test App Setup Guide
+
+**Author**: Matthew Raymer  
+**Date**: 2025-11-04
+
+## Overview
+
+This guide explains how to set up the standalone iOS test app for the DailyNotification plugin. The iOS test app mirrors the Android test app (`android-test-app`) functionality.
+
+## Option 1: Use Capacitor CLI (Recommended)
+
+### Step 1: Generate iOS App
+
+```bash
+cd test-apps/ios-test-app
+npx @capacitor/create-app@latest App --template blank
+```
+
+### Step 2: Configure Plugin
+
+Edit `App/Podfile`:
+
+```ruby
+platform :ios, '13.0'
+use_frameworks!
+
+def capacitor_pods
+  pod 'Capacitor', :path => '../../../node_modules/@capacitor/ios'
+  pod 'CapacitorCordova', :path => '../../../node_modules/@capacitor/ios'
+  pod 'DailyNotificationPlugin', :path => '../../../ios'
+end
+
+target 'App' do
+  capacitor_pods
+end
+```
+
+### Step 3: Install Dependencies
+
+```bash
+cd App
+pod install
+```
+
+### Step 4: Copy Test Interface
+
+Copy the test HTML from `test-apps/android-test-app/app/src/main/assets/public/index.html` to `App/App/public/index.html`.
+
+### Step 5: Configure Capacitor
+
+Edit `App/App/capacitor.config.json`:
+
+```json
+{
+  "appId": "com.timesafari.dailynotification",
+  "appName": "DailyNotification Test App",
+  "webDir": "public",
+  "plugins": {
+    "DailyNotification": {
+      "debugMode": true,
+      "enableNotifications": true
+    }
+  }
+}
+```
+
+## Option 2: Copy from ios/App (Quick Start)
+
+If `ios/App` already exists, you can copy it:
+
+```bash
+# From project root
+cp -r ios/App test-apps/ios-test-app/App
+cd test-apps/ios-test-app/App
+pod install
+```
+
+Then update:
+- `App/Info.plist` - Bundle ID: `com.timesafari.dailynotification`
+- `App/capacitor.config.json` - App ID and name
+- `App/public/index.html` - Copy test interface from Android test app
+
+## Build and Run
+
+### Using Xcode
+
+```bash
+cd test-apps/ios-test-app/App
+open App.xcworkspace
+# Then build and run in Xcode
+```
+
+### Using Command Line
+
+```bash
+cd test-apps/ios-test-app/App
+xcodebuild -workspace App.xcworkspace \
+    -scheme App \
+    -configuration Debug \
+    -sdk iphonesimulator \
+    -destination 'platform=iOS Simulator,name=iPhone 15 Pro' \
+    clean build
+```
+
+### Using Build Script
+
+```bash
+cd test-apps/ios-test-app
+./scripts/build-and-deploy.sh
+```
+
+## Plugin Registration
+
+The plugin is automatically registered via Capacitor when included in `Podfile`. No manual registration needed.
+
+## Test Interface
+
+The test interface (`App/App/public/index.html`) provides buttons for:
+
+- Plugin availability testing
+- Configuration
+- Status checking
+- Notification scheduling
+- Permission management
+
+## Troubleshooting
+
+### Plugin Not Found
+
+Ensure plugin is built:
+```bash
+./scripts/build-native.sh --platform ios
+```
+
+### CocoaPods Issues
+
+```bash
+cd test-apps/ios-test-app/App
+pod deintegrate
+pod install
+```
+
+### Build Errors
+
+1. Clean build folder in Xcode (⌘⇧K)
+2. Delete derived data: `rm -rf ~/Library/Developer/Xcode/DerivedData`
+3. Rebuild
+
+## Next Steps
+
+1. Build plugin: `./scripts/build-native.sh --platform ios`
+2. Generate or copy iOS app structure
+3. Install CocoaPods dependencies
+4. Build and run in Xcode or simulator
+5. Test plugin functionality
+