VGV-specific reference for bumping Dart and Flutter SDK constraints across packages. Covers pubspec.yaml environment constraints, CI workflow Flutter versions, and SDK upgrade PR preparation. Flutter CI uses MAJOR.MINOR.x with no caret to resolve to the latest patch; pubspec pins the exact patch wit
VGV-specific reference for bumping Dart and Flutter SDK constraints across packages. Covers pubspec.yaml environment constraints, CI workflow Flutter versions, and SDK upgrade PR preparation. Flutter CI uses MAJOR.MINOR.x with no caret to resolve to the latest patch; pubspec pins the exact patch with a caret (e.g., ^3.50.1).