fix(check): make browser smoke check cross-platform on windows

scripts/check-browser-smoke.mjs

@@ -0,0 +1,36 @@
+import { writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { build } from "esbuild";
+
+const outputPath = join(tmpdir(), "pi-browser-smoke.js");
+const errorLogPath = join(tmpdir(), "pi-browser-smoke-errors.log");
+
+try {
+	await build({
+		entryPoints: ["scripts/browser-smoke-entry.ts"],
+		bundle: true,
+		platform: "browser",
+		format: "esm",
+		logLevel: "silent",
+		outfile: outputPath,
+	});
+	process.exit(0);
+} catch (error) {
+	let detailedErrors = "";
+	if (error && typeof error === "object" && "errors" in error && Array.isArray(error.errors)) {
+		detailedErrors = error.errors
+			.map((entry) => {
+				const location = entry.location
+					? `${entry.location.file}:${entry.location.line}:${entry.location.column}`
+					: "";
+				return [location, entry.text].filter(Boolean).join(" ");
+			})
+			.join("\n");
+	}
+
+	const baseError = error instanceof Error ? (error.stack ?? error.message) : String(error);
+	writeFileSync(errorLogPath, [detailedErrors, baseError].filter(Boolean).join("\n\n"), "utf-8");
+	console.error(`Browser smoke check failed. See ${errorLogPath}`);
+	process.exit(1);
+}