NetExperts Support 1.4.8 — source package revision 2

This package covers NetExperts Support and NetExperts Advanced Support.
It retains every file from the original published 1.4.8 source archive,
including customised client and server code, vendored hbb_common, licence
notices, Rust/Dart lockfiles, platform resources and installer definitions.

Revision 2 adds the preserved generated Rust/Dart bridge files and the macOS
bridge header omitted from the earlier source archive. The common bridge
files match the preserved Windows and macOS build inputs byte for byte.
The input Flutter FFI source, client entry point, lockfiles and custom
configuration were checked against the preserved macOS source snapshot.
The application version remains 1.4.8; this is a source-packaging revision.
SHA256SUMS lists all package files except the manifest itself.

Build notes
-----------
Use an isolated source directory and versioned dependencies. Recorded tools:
Rust 1.75.0; Flutter 3.24.5; flutter_rust_bridge 1.80;
vcpkg baseline 120deac3062162151622ca4860575a33844ba10b.
The historical Flutter framework revision is
 dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
and its engine revision is a18df97ca57a249df5d8d68cd0820600223ce262.
Build dependencies and platform SDKs must be installed separately. This is
source code, not an offline toolchain or a prebuilt binary distribution.

Keep client/Cargo.lock, client/flutter/pubspec.lock and the supplied bridge
files. Consult client/README.md, client/build.py, the platform build files,
client/vcpkg.json and client/res/msi for build and packaging requirements.
Windows needs Visual Studio C++ build tools, Windows SDK, LLVM/Clang, Python,
Flutter and the WiX/MSBuild packaging tools. macOS needs Xcode and CocoaPods
in addition to the Rust, Flutter and native-library dependencies.

Advanced builds leave NX_BUILD_PROFILE unset. Incoming-only profiles use
windows_inbound_client on Windows and macos_inbound_client on macOS.
Keep each edition's output in a separate directory. The historical Windows
Rust command, run from client, is:
 cargo build --locked --lib --features hwcodec,flutter,vram --release
Use the matching edition profile throughout Rust/Flutter compilation and
packaging. Do not mix output from different profiles or Flutter engines.

The archive includes existing upstream GNU AGPL v3 licence notices. Signing
keys, credentials, private deployment records and tool caches are excluded.
No preserved working tree was changed, and no fresh full rebuild or installed
rollback test was performed when assembling this source package.
