Translate pages, areas, menus, forms and posts field by field instead of rebuilding them

A site can have further languages (Settings → Languages). A page is built once; each language
adds only its texts, keyed by the stable block IDs, plus its own address under /en/… (ADR 111,
document schema v27, migration 20261009000100 for page_translation).

- Editor: DE | EN switch, a list of all texts with original, state (missing, translated,
  original changed) and filter; structure stays with the main language. Undo, drafts,
  publishing and revisions cover all languages at once.
- Website: /en and translated slugs, lang, canonical, hreflang with x-default, og:locale,
  sitemap; links to translated pages follow the language; a language switch block.
- Header, footer and linked sections translate the same way; menu entries carry labels per
  language; fixed template texts come from a small dictionary.
- Forms: labels, help, options, button and success message per language; messages and the
  step script speak the language, the submission and the email stay in the main language.
- Posts, archives, category names, consent text and the 404 page follow the language.
- Single-language sites see none of it and never touch the new table.

The forms administration becomes an overview with one row per form and its own edit page;
fields are one line each with details collapsed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/Content/Consent.php

@@ -158,6 +158,9 @@ final class Consent
     {
         $settings = $this->settings->load();
         $decision = $this->decision($request);
+        // Auf einer Seite in einer weiteren Sprache der Hinweis in dieser Sprache (ADR 111).
+        $locale = $request->attributes->get('kant_locale');
+        $translated = is_string($locale) ? ($settings['consentTexts'][$locale] ?? []) : [];
 
         return [
             'groups' => array_map(
@@ -171,8 +174,8 @@ final class Consent
             ),
             'decided' => null !== $decision,
             'decidedAt' => $decision['at'] ?? null,
-            'text' => $settings['consentText'],
-            'title' => $settings['consentTitle'],
+            'text' => $translated['text'] ?? $settings['consentText'],
+            'title' => $translated['title'] ?? $settings['consentTitle'],
             'layout' => $settings['consentLayout'],
             'privacyPath' => $settings['privacyPath'],
             'imprintPath' => $settings['imprintPath'],