hailin 7e44ddc358 fix: file picker now shows subdirectories on Android ... FileType.custom with allowedExtensions causes Android system picker to hide subdirectories on some devices. Changed to FileType.any with post-selection extension validation instead. - Unsupported file types are skipped with a SnackBar hint - Allowed: jpg, jpeg, png, gif, webp, pdf Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>		2026-02-28 06:02:47 -08:00
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chat_page.dart	fix: file picker now shows subdirectories on Android	2026-02-28 06:02:47 -08:00