chore: import upstream snapshot with attribution

docs/scripts/sync-docs-zh-skeleton.mjs

@@ -0,0 +1,90 @@
+import fs from 'node:fs';
+import path from 'node:path';
+
+const repoRoot = process.cwd();
+const sourceRoot = path.join(repoRoot, 'docs');
+const targetRoot = path.join(
+  repoRoot,
+  'i18n',
+  'zh-CN',
+  'docusaurus-plugin-content-docs',
+  'current',
+);
+const staticSourceRoot = path.join(repoRoot, 'static');
+const staticTargetRoot = path.join(repoRoot, 'i18n', 'zh-CN', 'docusaurus-plugin-content-docs', 'static');
+
+const supportedExtensions = new Set(['.md', '.mdx']);
+
+let created = 0;
+let skipped = 0;
+let staticCreated = 0;
+let staticSkipped = 0;
+
+function walk(dirPath) {
+  const entries = fs.readdirSync(dirPath, { withFileTypes: true });
+
+  for (const entry of entries) {
+    const sourcePath = path.join(dirPath, entry.name);
+    const relativePath = path.relative(sourceRoot, sourcePath);
+    const targetPath = path.join(targetRoot, relativePath);
+
+    if (entry.isDirectory()) {
+      walk(sourcePath);
+      continue;
+    }
+
+    if (!supportedExtensions.has(path.extname(entry.name))) {
+      continue;
+    }
+
+    if (fs.existsSync(targetPath)) {
+      skipped += 1;
+      continue;
+    }
+
+    fs.mkdirSync(path.dirname(targetPath), { recursive: true });
+    fs.copyFileSync(sourcePath, targetPath);
+    created += 1;
+  }
+}
+
+function copyStatic(dirPath) {
+  const entries = fs.readdirSync(dirPath, { withFileTypes: true });
+
+  for (const entry of entries) {
+    const sourcePath = path.join(dirPath, entry.name);
+    const relativePath = path.relative(staticSourceRoot, sourcePath);
+    const targetPath = path.join(staticTargetRoot, relativePath);
+
+    if (entry.isDirectory()) {
+      copyStatic(sourcePath);
+      continue;
+    }
+
+    if (fs.existsSync(targetPath)) {
+      staticSkipped += 1;
+      continue;
+    }
+
+    fs.mkdirSync(path.dirname(targetPath), { recursive: true });
+    fs.copyFileSync(sourcePath, targetPath);
+    staticCreated += 1;
+  }
+}
+
+if (!fs.existsSync(sourceRoot)) {
+  console.error(`English docs source directory not found: ${sourceRoot}`);
+  process.exit(1);
+}
+
+fs.mkdirSync(targetRoot, { recursive: true });
+walk(sourceRoot);
+
+if (fs.existsSync(staticSourceRoot)) {
+  fs.mkdirSync(staticTargetRoot, { recursive: true });
+  copyStatic(staticSourceRoot);
+}
+
+console.log(
+  `zh-CN docs skeleton sync complete. docs_created=${created}, docs_skipped=${skipped}, static_created=${staticCreated}, static_skipped=${staticSkipped}`,
+);