perf(studio): defer import history and Nitro scale tools until opened

src/lib/studio-bundle.test.ts

@@ -0,0 +1,48 @@
+import path from "node:path";
+import { build } from "esbuild";
+import { expect, it } from "vitest";
+
+it("keeps scale preview and generation outside the initial Nitro editor bundle", async () => {
+	const entry = "src/app/admin/import/furni/nitro-editor-dialog.tsx";
+	const result = await build({
+		entryPoints: [entry],
+		bundle: true,
+		splitting: true,
+		format: "esm",
+		write: false,
+		outdir: "storage/bundle-check",
+		metafile: true,
+		packages: "external",
+		alias: { "@": path.resolve("src") },
+	});
+	const outputs = result.metafile.outputs;
+	const start = Object.keys(outputs).find(
+		(key) => outputs[key].entryPoint === entry,
+	);
+	expect(start).toBeDefined();
+	const seen = new Set<string>();
+	function visit(key: string) {
+		if (seen.has(key)) return;
+		seen.add(key);
+		for (const dependency of outputs[key].imports) {
+			if (dependency.kind !== "dynamic-import" && !dependency.external)
+				visit(dependency.path);
+		}
+	}
+	if (!start) throw new Error("Missing editor entry bundle");
+	visit(start);
+	const initialInputs = new Set(
+		[...seen].flatMap((key) => Object.keys(outputs[key].inputs)),
+	);
+	for (const name of [
+		"nitro-quality-panel.tsx",
+		"nitro-scale32-generator.tsx",
+	]) {
+		expect(
+			Object.keys(result.metafile.inputs).some((input) => input.endsWith(name)),
+		).toBe(true);
+		expect([...initialInputs].some((input) => input.endsWith(name))).toBe(
+			false,
+		);
+	}
+}, 30_000);