concat, concat-bin, concat-git: new packages

Concat (https://github.com/jub0t/Concat) is a Tauri 2 shell around a Rust
video engine, sold as a CapCut replacement. The project is mid-rename: the
binary, the desktop entry, the icons and the .deb asset all still say
WolfCut, so the packages install upstream's paths unchanged and add a
/usr/bin/concat symlink.

Upstream stages a static ffmpeg/ffprobe pair (180 MB) and whisper-cli
inside its bundle so the app runs on a machine with nothing installed.
Both lookups fall back to PATH, so concat-bin drops those two directories
and the source packages set WOLFCUT_SYSTEM_TOOLS=1 - the switch upstream
put in build.rs for exactly this case - leaving ffmpeg and whisper-cpp to
Arch. That is 17 MB installed instead of 225 MB.

!lto is not optional: makepkg's lto puts -flto=auto into CFLAGS, and ring
compiles hand-written assembly through cc, which then comes out as bitcode
and links to nothing.

sherpa-onnx-sys ships no C++ build; its build script downloads a prebuilt
static-lib archive. concat lists that archive as a checksummed source and
points the build script at it, with the version read out of upstream's
Cargo.lock by pkg.sh. concat-git cannot pin it - the version moves with
main - so there the build script fetches it.

Every upstream release is a v<version>-alpha.<n> prerelease published on a
push to main, several a day, and the release list is ordered by creation
rather than by version, so the newest is picked by publication date.

Only concat-git is published for now; concat and concat-bin are held back
with AUR_PUBLISH=false until that cadence has been lived with.

concat/.SRCINFO

@@ -0,0 +1,35 @@
+pkgbase = concat
+	pkgdesc = Free and open-source CapCut replacement, a Tauri video editor with a Rust engine
+	pkgver = 0.2.0alpha.15
+	pkgrel = 1
+	url = https://github.com/jub0t/Concat
+	arch = x86_64
+	license = MPL-2.0
+	makedepends = rust
+	makedepends = npm
+	makedepends = pkgconf
+	depends = webkit2gtk-4.1
+	depends = gtk3
+	depends = glib2
+	depends = libsoup3
+	depends = gdk-pixbuf2
+	depends = cairo
+	depends = dbus
+	depends = glib-networking
+	depends = alsa-lib
+	depends = ffmpeg
+	depends = gcc-libs
+	depends = glibc
+	depends = hicolor-icon-theme
+	optdepends = whisper-cpp: on-device auto-captions and transcription
+	optdepends = vulkan-icd-loader: Vulkan compositor backend
+	optdepends = libglvnd: OpenGL compositor backend
+	noextract = sherpa-onnx-v1.13.6-linux-x64-static-lib.tar.bz2
+	options = !debug
+	options = !lto
+	source = concat-0.2.0alpha.15.tar.gz::https://github.com/jub0t/Concat/archive/refs/tags/v0.2.0-alpha.15.tar.gz
+	source = https://github.com/k2-fsa/sherpa-onnx/releases/download/v1.13.6/sherpa-onnx-v1.13.6-linux-x64-static-lib.tar.bz2
+	sha256sums = 2b77c892fdd10f1cc93842bd8f0c30504ef17c797ddf386bc100308d175c4c8c
+	sha256sums = fe4968c3cd2ad3dfd1ea925500e5542aef70dd7119847257ffde95d6260cd629
+
+pkgname = concat