feat: translate all pages, UI messages and docs and fix SEO redirects and indexing

scripts/docs-languages.mjs

@@ -0,0 +1,50 @@
+import fs from 'fs';
+import path from 'path';
+
+export function listDocsSourcePages(docsDir, languageCodes) {
+  const codes = new Set(languageCodes);
+  const pages = [];
+  const walk = (dir, relative) => {
+    for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
+      if (
+        entry.name.startsWith('.') ||
+        entry.name === 'node_modules' ||
+        entry.name === 'public'
+      ) {
+        continue;
+      }
+      const next = relative ? `${relative}/${entry.name}` : entry.name;
+      if (entry.isDirectory()) {
+        if (!relative && codes.has(entry.name)) continue;
+        walk(path.join(dir, entry.name), next);
+      } else if (entry.name.endsWith('.md')) {
+        pages.push(next);
+      }
+    }
+  };
+  walk(docsDir, '');
+  return pages.sort();
+}
+
+export function completeDocsLanguages(docsDir, languageCodes, requested) {
+  const pages = listDocsSourcePages(docsDir, languageCodes);
+  const complete = [];
+  const incomplete = [];
+  for (const lang of languageCodes) {
+    if (!fs.existsSync(path.join(docsDir, lang))) continue;
+    const missing = pages.filter(
+      (page) => !fs.existsSync(path.join(docsDir, lang, page))
+    );
+    if (missing.length === 0) complete.push(lang);
+    else
+      incomplete.push({ lang, missing: missing.length, total: pages.length });
+  }
+  const wanted =
+    !requested || requested === 'all'
+      ? complete
+      : requested
+          .split(',')
+          .map((lang) => lang.trim())
+          .filter((lang) => complete.includes(lang));
+  return { enabled: wanted, incomplete };
+}