Closes task #134 work.
PR #44 showed the cross-distro ABI hazard for `libva-v4l2-request-fourier-debian`: building on Arch (libva 2.23) produced `__vaDriverInit_1_23`, which trixies libva 2.22 runtime cant bind. Same hazard applies to other fourier-debian jobs that link against debian-native libs.
**Moved from runs-on: arch-aarch64 → debian-aarch64:**
- ffmpeg-v4l2-request-debian
- mpv-fourier-debian
- daedalus-v4l2-debian
- daedalus-v4l2-dkms-debian
**Left alone (arch=all, no native compile against debian libs):**
- lmcp-debian
- claude-his-debian
Depends on PR #46 (label vs name fix) being merged so `debian-aarch64` actually routes to bohr.
Reviewed-on: #47
CI currently rebuilds every recipe on every push. distcc-avahi hasn't
changed in weeks but still burns runner-time. Add a small bash helper
that takes a recipe dir (arch/<n> or debian/<n>), resolves the expected
pool URL on packages.reauktion.de, and prints `skip=1` or `skip=0`.
Live-tested against all 14 recipes. Sources PKGBUILDs in a sandboxed
subshell so epoch=, ${_pkgver/-/}, and pkgname=() arrays resolve
correctly. For debian/*, extracts top-level PKGVER/PKGREL lines with
an awk guard that rejects command-subst and embedded-command
assignments (avoids false-positive matches against HEREDOC-quoted
dkms.conf content).
Wiring into build.yml lands in the next commit.