Unified file conversion in FFmpegAddonAdapter to use decodeAudioToFmt for all formats, updated FFmpeg interface and service to support new conversion method, and added adapter name checks in GetRecord and DownloadFileRecordStream for optimized conversion flow. Updated native addon binaries to support these changes.
Updated the FFmpeg adapter interfaces and implementations so that PCM conversion methods now return an object containing the conversion result and sample rate, instead of a Buffer. Adjusted audio processing logic to accommodate this change and improved error logging. Updated native ffmpeg addon binaries.
Corrects the construction of the ffmpeg addon filename and improves error handling when the addon is not found. Also simplifies the isAvailable method by removing redundant existence checks.
Simplifies the logic for resolving the ffmpeg addon path by dynamically constructing the filename from process.platform and process.arch. Also renames the Windows x64 addon file to ffmpegAddon.win32.x64.node for consistency.
