build: add Vite web production pipeline

frontend/scripts/copy-runtime-assets.js

@@ -0,0 +1,34 @@
+import { copyFileSync, existsSync, mkdirSync, readdirSync } from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const frontendRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+const outputDirectory = path.join(frontendRoot, 'dist');
+
+mkdirSync(outputDirectory, { recursive: true });
+
+function copyEntry(source, destination) {
+  const entries = readdirSync(source, { withFileTypes: true });
+  mkdirSync(destination, { recursive: true });
+  for (const entry of entries) {
+    const sourcePath = path.join(source, entry.name);
+    const destinationPath = path.join(destination, entry.name);
+    if (entry.isDirectory()) {
+      copyEntry(sourcePath, destinationPath);
+    } else if (entry.isFile()) {
+      copyFileSync(sourcePath, destinationPath);
+    }
+  }
+}
+
+for (const entry of ['libs', 'favicon.ico']) {
+  const source = path.join(frontendRoot, entry);
+  if (existsSync(source)) {
+    const destination = path.join(outputDirectory, entry);
+    if (entry.includes('.')) {
+      copyFileSync(source, destination);
+    } else {
+      copyEntry(source, destination);
+    }
+  }
+}