feat: deliver first finance preview with setup wizard

frontend/tests/production-hygiene.test.ts

@@ -0,0 +1,21 @@
+import { execFileSync } from 'node:child_process';
+import { readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+
+import { describe, expect, it } from 'vitest';
+
+describe('production frontend hygiene', () => {
+  it('keeps Starter demonstrations and Mock fixtures outside the production source tree', () => {
+    const output = execFileSync(process.execPath, ['scripts/check-production-hygiene.mjs'], {
+      cwd: process.cwd(),
+      encoding: 'utf8',
+    });
+    expect(output).toContain('Production hygiene passed');
+  });
+
+  it('runs the dist scan as part of every release build', () => {
+    const packageJson = JSON.parse(readFileSync(resolve(process.cwd(), 'package.json'), 'utf8'));
+    expect(packageJson.scripts.build).toContain('npm run check:dist');
+    expect(packageJson.scripts['check:dist']).toBe('node scripts/check-production-hygiene.mjs --dist');
+  });
+});