Minify JS output

scripts/minify-static-js.mjs

@@ -0,0 +1,45 @@
+#!/usr/bin/env node
+/**
+ * Post-build: minify all JS in dist/assets/js/ (static scripts copied from static/assets/js/).
+ * Runs after vite build (and optionally after critters). Uses esbuild for minification.
+ */
+
+import * as esbuild from 'esbuild';
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const ROOT = path.join(__dirname, '..');
+const JS_DIR = path.join(ROOT, 'dist', 'assets', 'js');
+
+async function main() {
+    if (!fs.existsSync(JS_DIR)) {
+        console.warn('dist/assets/js/ not found; skipping static JS minify.');
+        return;
+    }
+
+    const files = fs.readdirSync(JS_DIR).filter((f) => f.endsWith('.js'));
+    if (files.length === 0) {
+        console.warn('No .js files in dist/assets/js/; skipping.');
+        return;
+    }
+
+    for (const file of files) {
+        const filePath = path.join(JS_DIR, file);
+        const code = fs.readFileSync(filePath, 'utf8');
+        const result = await esbuild.transform(code, {
+            minify: true,
+            target: 'es2015',
+        });
+        fs.writeFileSync(filePath, result.code, 'utf8');
+        console.log('✓ Minified dist/assets/js/' + file);
+    }
+
+    console.log('Static JS minify complete.');
+}
+
+main().catch((err) => {
+    console.error(err);
+    process.exit(1);
+});