Worked on enhancing the DraggableScrollableSheet component in the flutter/flutter repository by implementing a feature that preserves snap position stability under physics-induced bouncing. Using Dart and Flutter, focused on UI development and widget testing to ensure that the sheet maintains its snapped state and avoids unnecessary adjustments when already snapped. Addressed a regression related to snap behavior triggered by physics, resolving a specific Flutter issue and improving user experience consistency for applications relying on bottom sheets. Expanded test coverage to validate the new behavior across various scenarios, and followed contributor guidelines and pre-launch checks to ensure release readiness and maintain code quality.