Widget Bridge - a Flutter home screen widget checked across Dart, Swift and Kotlin

Check one Flutter home screen widget across its files, then correct them. Free in your browser: the Dart, SwiftUI, Kotlin and XML files lined up - the App Group in Dart against the Swift UserDefaults suite, the iOSName and androidName passed to updateWidget against the Swift widget kind and the Android provider, every key saved against every key read with its type, the view ids the provider sets against the layout and the provider against the manifest - and UserDefaults.standard, force-unwrapped reads, providers that never call updateAppWidget and saves not awaited flagged, plus a key map, the skill's checklist, the native setup steps and CSVs. Metered runs write the review (each finding confirmed or cleared, what a scan cannot see, the fixes in order) and every file corrected, which the page re-scans. Built on the SkillSafe skill @flutter/flutter-adding-home-screen-widgets, from flutter/skills (BSD-3-Clause), by the Flutter team.