atracdenc/src/utf8_file.h, branch fix_input_file_path

Drop FileModeToWide allow-list

2026-05-03T18:47:07Z

Widen the ASCII fopen mode string with std::wstring's iterator-pair constructor instead of maintaining a hand-coded mapping. ASCII (0-127) codepoints are valid wchar_t code units on Windows, which is the only alphabet fopen modes use. Co-Authored-By: Claude Opus 4.7

Clean up UTF-8 path handling

2026-05-03T18:37:20Z

Reuse the shared UTF-8 path helper in Media Foundation, normalize compressed output open errors, cover AEA encode/decode paths, and expand integration tests for ATRAC1 and decode filenames.

Fix UTF-8 input and output paths

2026-05-03T18:20:31Z

Report libsndfile open failures before sample-rate validation, use UTF-16 Windows opens for PCM and compressed containers, and add integration tests for missing input plus UTF-8 input/output filenames.