Add HealthBridge iOS app for intelligent health data synchronization

Complete implementation of a SwiftUI iOS app that serves as a "Single Source
of Truth" for health data. The app reads from all Apple Health sources,
detects conflicts between devices, merges data using configurable strategies,
and writes cleaned data back.

Features:
- Phase 1: HealthKit integration with automatic source discovery
- Phase 2: DataReader with conflict detection (time-window based)
- Phase 3: RuleEngine with 8 merge strategies (exclusive, priority, higher wins, etc.)
- Phase 4: MergeEngine for conflict resolution + DataWriter for HealthKit writes
- Phase 5: SwiftUI UI for dashboard, conflicts, rules, and sources management
- Phase 6: Background sync with configurable intervals and push notifications
- Phase 7: Complete rule editor and polished UI components

Supported data types:
- Steps, Heart Rate, Blood Pressure, SpO2, Sleep
- Distance, Floors Climbed, Active Energy, HRV, Respiratory Rate

Architecture: SourceManager -> DataReader -> RuleEngine -> MergeEngine -> DataWriter

HealthBridge/Resources/HealthBridge.entitlements

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.developer.healthkit</key>
+    <true/>
+    <key>com.apple.developer.healthkit.access</key>
+    <array>
+        <string>health-records</string>
+    </array>
+    <key>com.apple.developer.healthkit.background-delivery</key>
+    <true/>
+    <key>aps-environment</key>
+    <string>development</string>
+</dict>
+</plist>

HealthBridge/Resources/Info.plist

@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleDevelopmentRegion</key>
+    <string>$(DEVELOPMENT_LANGUAGE)</string>
+    <key>CFBundleDisplayName</key>
+    <string>HealthBridge</string>
+    <key>CFBundleExecutable</key>
+    <string>$(EXECUTABLE_NAME)</string>
+    <key>CFBundleIdentifier</key>
+    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+    <key>CFBundleInfoDictionaryVersion</key>
+    <string>6.0</string>
+    <key>CFBundleName</key>
+    <string>$(PRODUCT_NAME)</string>
+    <key>CFBundlePackageType</key>
+    <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+    <key>CFBundleShortVersionString</key>
+    <string>1.0</string>
+    <key>CFBundleVersion</key>
+    <string>1</string>
+    <key>LSRequiresIPhoneOS</key>
+    <true/>
+    <key>UIApplicationSceneManifest</key>
+    <dict>
+        <key>UIApplicationSupportsMultipleScenes</key>
+        <false/>
+    </dict>
+    <key>UILaunchScreen</key>
+    <dict>
+        <key>UIColorName</key>
+        <string>LaunchScreenBackground</string>
+        <key>UIImageName</key>
+        <string>LaunchIcon</string>
+    </dict>
+    <key>UISupportedInterfaceOrientations</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>UISupportedInterfaceOrientations~ipad</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationPortraitUpsideDown</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>UIRequiredDeviceCapabilities</key>
+    <array>
+        <string>armv7</string>
+        <string>healthkit</string>
+    </array>
+
+    <!-- HealthKit -->
+    <key>NSHealthShareUsageDescription</key>
+    <string>HealthBridge benötigt Zugriff auf Ihre Gesundheitsdaten, um diese zwischen verschiedenen Quellen zu synchronisieren und Konflikte zu lösen.</string>
+    <key>NSHealthUpdateUsageDescription</key>
+    <string>HealthBridge schreibt bereinigte Gesundheitsdaten zurück in Apple Health, um eine konsistente Datenbasis zu gewährleisten.</string>
+
+    <!-- Background Modes -->
+    <key>UIBackgroundModes</key>
+    <array>
+        <string>fetch</string>
+        <string>processing</string>
+    </array>
+    <key>BGTaskSchedulerPermittedIdentifiers</key>
+    <array>
+        <string>com.healthbridge.sync</string>
+        <string>com.healthbridge.cleanup</string>
+    </array>
+</dict>
+</plist>