Extract breadhelp to its own repo (git.breadway.dev/Breadway/breadhelp)

Mirrors the bos-settings extraction (664298b): a breadhelp release no
longer requires a v* tag on the whole bos monorepo, which was
indistinguishable from an actual BOS-version release tag. Source lives
at ~/Projects/breadhelp now, full history preserved via git-filter-repo.

Root Cargo.toml/Cargo.lock and .forgejo/workflows/package.yml removed
too — breadhelp was the sole workspace member and the sole thing that
workflow built.

packaging/arch/breadhelp/PKGBUILD

@@ -1,40 +0,0 @@
-# Maintainer: Breadway <rileyhorsham@gmail.com>
-
-pkgname=breadhelp
-pkgver=0.1.0
-pkgrel=1
-pkgdesc="Onboarding and help center for Bread OS"
-arch=('x86_64')
-url="https://github.com/Breadway/bos"
-license=('MIT')
-# Some Rust deps (ring/mlua) build vendored C/asm into static archives; makepkg's
-# default -flto=auto emits GCC LTO bitcode the Rust (lld) link cannot read,
-# causing undefined-symbol errors. Disable LTO.
-options=(!lto !debug)
-depends=('gtk4' 'glib2' 'gtk4-layer-shell' 'hicolor-icon-theme')
-optdepends=(
-  'snapper: create-backup one-click fix'
-)
-makedepends=('rust' 'cargo')
-source=("${pkgname}-${pkgver}.tar.gz")
-sha256sums=('SKIP')
-
-build() {
-  cd "${srcdir}/${pkgname}-${pkgver}"
-  cargo build --release --locked -p breadhelp
-}
-
-check() {
-  cd "${srcdir}/${pkgname}-${pkgver}"
-  cargo test --release --locked -p breadhelp
-}
-
-package() {
-  cd "${srcdir}/${pkgname}-${pkgver}"
-  install -Dm755 target/release/breadhelp "${pkgdir}/usr/bin/breadhelp"
-  install -Dm644 packaging/arch/breadhelp/breadhelp.desktop \
-    "${pkgdir}/usr/share/applications/breadhelp.desktop"
-  install -d "${pkgdir}/usr/share/breadhelp"
-  cp -r breadhelp/content "${pkgdir}/usr/share/breadhelp/content"
-  install -Dm644 LICENSE "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
-}

packaging/arch/breadhelp/breadhelp.desktop

@@ -1,9 +0,0 @@
-[Desktop Entry]
-Name=BOS Help
-Comment=Your personal guide to the Bread desktop
-Exec=breadhelp
-Icon=help-browser
-Terminal=false
-Type=Application
-Categories=Help;System;
-StartupWMClass=com.breadway.breadhelp