feat(status): improve status output

src/infra/os-summary.ts

@@ -0,0 +1,31 @@
+import { spawnSync } from "node:child_process";
+import os from "node:os";
+
+export type OsSummary = {
+  platform: NodeJS.Platform;
+  arch: string;
+  release: string;
+  label: string;
+};
+
+function safeTrim(value: unknown): string {
+  return typeof value === "string" ? value.trim() : "";
+}
+
+function macosVersion(): string {
+  const res = spawnSync("sw_vers", ["-productVersion"], { encoding: "utf-8" });
+  const out = safeTrim(res.stdout);
+  return out || os.release();
+}
+
+export function resolveOsSummary(): OsSummary {
+  const platform = os.platform();
+  const release = os.release();
+  const arch = os.arch();
+  const label = (() => {
+    if (platform === "darwin") return `macos ${macosVersion()} (${arch})`;
+    if (platform === "win32") return `windows ${release} (${arch})`;
+    return `${platform} ${release} (${arch})`;
+  })();
+  return { platform, arch, release, label };
+}