Manual workflow_dispatch builder for any branch/tag: target ∈
{android-aar, apple-xcframework, binary, linux-musl, all}, branch = any ref.
Mirrors lx-release build jobs but uploads artifacts instead of releasing.
Lives on lx (default branch) so `gh workflow run` can find it; each job
checks out the requested branch, so lx source is never required to build it.
gh workflow run lx-build.yml -f target=android-aar -f branch=<branch>
No project code touched — CI file only.