feat: add NSLocalNetworkUsageDescription to iOS and macOS Info.plist

Required for local network privacy prompt on macOS 15+ and iOS 14+.
App appears in System Settings → Local Network after connecting to a
LAN server. Internet-hosted servers only need network.client entitlement.

apps/chanora_flutter/ios/Runner/Info.plist

@@ -55,6 +55,8 @@
 	<array>
 		<string>audio</string>
 	</array>
+	<key>NSLocalNetworkUsageDescription</key>
+	<string>Chanora needs local network access to connect to TeamSpeak-compatible voice servers.</string>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

apps/chanora_flutter/macos/Runner/Info.plist

@@ -36,5 +36,7 @@
 	<string>Chanora needs microphone access so you can talk on your TeamSpeak-compatible voice server.</string>
 	<key>NSInputMonitoringUsageDescription</key>
 	<string>Chanora uses Input Monitoring so push-to-talk keys work even when other apps are focused. Chanora never records what you type — only the key you bound for talking.</string>
+	<key>NSLocalNetworkUsageDescription</key>
+	<string>Chanora needs local network access to connect to TeamSpeak-compatible voice servers.</string>
 </dict>
 </plist>