Prepare internal extension distribution

scripts/package-release.mjs

@@ -0,0 +1,24 @@
+import { mkdir, rm } from "node:fs/promises";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+
+const execFileAsync = promisify(execFile);
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const projectRoot = path.resolve(__dirname, "..");
+const sourceDir = path.join(projectRoot, "dist-release");
+const releaseDir = path.join(projectRoot, "release");
+const archivePath = path.join(
+  releaseDir,
+  "star-chart-search-enhancer-internal.zip"
+);
+
+await mkdir(releaseDir, { recursive: true });
+await rm(archivePath, { force: true });
+await execFileAsync("zip", ["-X", "-r", archivePath, "."], {
+  cwd: sourceDir
+});
+
+console.log(`Internal archive created at ${archivePath}`);