Add camera settings and Vercel deployment

scripts/build-vercel.cjs

@@ -0,0 +1,13 @@
+// Only the static web application is published; repository tools and local
+// configuration are not copied to the public deployment.
+const fs = require('node:fs');
+const path = require('node:path');
+const root = path.resolve(__dirname, '..');
+const output = path.join(root, 'dist');
+fs.mkdirSync(output, { recursive: true });
+for (const name of ['index.html', 'version.json', 'assets', 'css', 'js']) {
+  const source = path.join(root, name);
+  if (!fs.existsSync(source)) throw new Error(`Missing static application input: ${name}`);
+  fs.cpSync(source, path.join(output, name), { recursive: true, force: true });
+}
+console.log('Static application prepared for Vercel.');