Refresh the four bundled platform binaries from NapNeko/ffmpegAddon commit 9ac944793ffdc2a1c5c55f16e24cb32185feb4ec, successful build 38025527136. Record artifact provenance and binary checksums.
Add native regression coverage for standard SILK, QQ NTSILK, extensionless inputs, and truncated packets.
Normalize the observed AI SILK container marker at the shared audio transcode boundary before invoking the bundled decoder. Preserve caller-owned bytes and leave ordinary SILK, AMR, and unrelated inputs unchanged.
Add unit and packaged-addon regression coverage for MP3 conversion, payload preservation, and input immutability.
Fixes#268
Replace the feature-specific MP3 verification command with a workspace-wide native test entry point.
Keep native regression cases in package-owned test suites so future checks can expand without adding workflow steps.