Handle null Darwin getTitleAsync results without crashing

[Copilot]

PhotoManagerPlugin.getTitleAsync could receive a null result from the Darwin platform channel even though the Dart API returns Future<String>. This change removes the non-null assumption and falls back to an empty string instead.

• Runtime fix

  • Replace the implicit non-null expectation in getTitleAsync with an inlined null-safe fallback (?? '') for iOS/macOS results.
  • Keep non-Darwin behavior aligned by using the same fallback path for entity.title.

• Changelog

  • Document the fix under Unreleased.

if (Platform.isIOS || Platform.isMacOS) {
  return await _channel.invokeMethod<String>(
        PMConstants.mGetTitleAsync,
        <String, dynamic>{...},
      ) ??
      '';
}
return entity.title ?? '';

[AlexV525]

@copilot Remove test and make it inlined.

[Copilot]

@copilot Remove test and make it inlined.

Updated in e0ae2b5: the null fallback is now inlined in getTitleAsync, and the helper-only test was removed.

[Copilot]

Pull request overview

This PR updates the Dart-side getTitleAsync implementation to avoid crashing when the Darwin platform channel returns null, and records the fix in the changelog.

Changes:

• Uses invokeMethod<String> and falls back to '' for null Darwin title results.
• Keeps non-Darwin fallback behavior returning entity.title ?? ''.
• Adds an Unreleased changelog entry for the fix.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
lib/src/internal/plugin.dart	Adds null-safe fallback for Darwin getTitleAsync channel results.
CHANGELOG.md	Documents the Darwin getTitleAsync null-result fix under Unreleased fixes.

[github-actions]

Download apk from here for ab0538b