Add: Justfile to replace cmake and make

justfile

@@ -0,0 +1,13 @@
+# justfile (cross-platform, no bash)
+python := env_var_or_default("PYTHON", if os() == "windows" { "python" } else { "python3" })
+dist_dir := "dist"
+stage_root := "target/release-package"
+
+default:
+	@just --list
+
+release bin='' target='':
+	{{python}} scripts/release_meta.py --bin "{{bin}}" --target "{{target}}" --dist-dir "{{dist_dir}}" --stage-root "{{stage_root}}"
+
+clean-dist:
+	{{python}} -c "import shutil; shutil.rmtree('dist', ignore_errors=True); shutil.rmtree('target/release-package', ignore_errors=True)"