iOS: Incorrect BGTaskSchedulerPermittedIdentifiers Structure Generated in Info.plist

[aalrehn]

There is an issue in the iOS portion of the library where the generated Info.plist contains an incorrect structure for BGTaskSchedulerPermittedIdentifiers.
iOS expects this value to be an array, but the library currently generates it as a dictionary, which causes background task registration to fail.

Generated Output (Incorrect)

<key>BGTaskSchedulerPermittedIdentifiers</key> <dict> <key></key> <string>IN_APP_ALERTS</string> </dict>

Expected Structure (Correct)

<key>BGTaskSchedulerPermittedIdentifiers</key> <array> <string>IN_APP_ALERTS</string> </array>

Because of this mismatch, iOS rejects the task registration. The runtime error produced is:

[Framework] Registration rejected; IN_APP_ALERTS is not advertised in the application's Info.plist