Zyryn 1.2.7 Apple LGPL source materials

Applies to the verified custom media libraries used for Zyryn 1.2.7:
iOS and tvOS build 182, and macOS build 183. Source commit: bb3849a3d3c8 (release workspace).

This bundle includes the exact Zyryn patches, audio DSP/packetizer adapters,
builders, verification scripts, LGPL/copyright notices and cached framework
provenance for this release. It supplements the upstream corresponding source
at the immutable revisions and checked source archives documented in:

  scripts/appstore/CUSTOM_LIBMPV.md
  scripts/appstore/CUSTOM_VLCKIT.md

The builders fetch their pinned upstream source and dependency inputs and
verify checksums. Extract this archive, change into its top-level directory,
and follow those build guides on macOS with Xcode and the listed build tools:

  bash scripts/appstore/build_custom_libmpv.sh all
  bash scripts/appstore/build_custom_vlckit.sh all

The libmpv guide describes the macOS reference-volume and IEC 61937 passthrough
patches. The VLCKit guide describes the iOS/tvOS reference-volume and audio-chain
patches. All referenced Zyryn implementation files are included. Provenance
identifies the verified unsigned library cache; app signatures vary by build.

Upstream source:
  https://github.com/mpv-player/mpv/tree/v0.36.0
  https://github.com/media-kit/libmpv-darwin-build/tree/4286f5557bdccc0747030e3c376ce5cd160a96a0
  https://code.videolan.org/videolan/VLCKit/-/tree/c73b779f2d1e3d3c1598a27811679ce2c1a005db
  https://code.videolan.org/videolan/vlc/-/tree/dd8bfdbabe8ae3974ca3864ad3125879f523e3a2

See https://zyryn.com/open-source for notices and the retained-source request
path. Older release materials remain available separately.