Clone file to memory immediately after selection to avoid SnapshotState invalidation in W3C File API. Android/iOS browsers invalidate File object references after accessing properties (name, size, type). See: https://issues.chromium.org/40703873 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>