Add advanced path management, debug logging, and fix channel sync

New features:
- In-app debug log viewer with copy/clear functionality
- Advanced path management UI with history and custom path builder
- Battery indicator widget with voltage/percentage toggle
- Contact/channel filtering and sorting improvements
- Repeater command ACK tracking with path history integration

Fixes:
- Switch channel sync from parallel to sequential to prevent timeouts
- Preserve path overrides when contacts refresh from device
- Fix ACK hash computation for SMAZ-encoded messages
- Proper cleanup of pending operations on disconnect

macos/Runner/DebugProfile.entitlements

@@ -8,5 +8,7 @@
 	<true/>
 	<key>com.apple.security.network.server</key>
 	<true/>
+	<key>com.apple.security.device.bluetooth</key>
+	<true/>
 </dict>
 </plist>

macos/Runner/Info.plist

@@ -28,5 +28,7 @@
 	<string>MainMenu</string>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
+	<key>NSBluetoothAlwaysUsageDescription</key>
+	<string>MeshCore needs Bluetooth to communicate with LoRa mesh devices</string>
 </dict>
 </plist>

macos/Runner/Release.entitlements

@@ -4,5 +4,7 @@
 <dict>
 	<key>com.apple.security.app-sandbox</key>
 	<true/>
+	<key>com.apple.security.device.bluetooth</key>
+	<true/>
 </dict>
 </plist>