Success-story migration + new plugins + JSON/UX polish

- Success Stories: full migration from old site (48/48, audited),
  markets n:n, quotation content block, columns content block,
  pretty SEO detail URLs via SuccessStoryPathRewrite middleware,
  list/detail split (list page 4 / story page), detailUrl/backUrl
- New plugins: VITEC Locations (grid/list/map + RTE map text),
  VITEC Customer Logos (color/bw logic, only-show-selected),
  VITEC Card (one plugin for product/story/market/solution
  with reloading FlexForm + custom backend preview renderer)
- Eventlist: layout dropdown (list/grid/teaserbar) in settings
- Hero section CB: Images/Video tabs, background video + overlay
- Product JSON: full category rootline (parents), fixed missing
  ConnectionPool import (all-products crash), category tree map
- Backend preview CSS: container-query responsive (narrow columns)
- Docs: ISO architecture spec, root + extension READMEs

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/vitec/Classes/UserFunc/EventlistJsonRenderer.php

@@ -86,12 +86,14 @@ class EventlistJsonRenderer
             $daysInAdvance = (int)($settings['daysinadvance'] ?? 0);
             $limit = (int)($settings['limit'] ?? 0);
             $debugMode = (bool)($settings['debug'] ?? false);
+            $layout = (string)($settings['layout'] ?? 'list');
 
             $upcoming = $this->fetchEvents(true, $limit, $daysInAdvance);
 
             $response = [
                 'events' => array_map(fn($e) => $this->serializeEvent($e), $upcoming),
                 'settings' => [
+                    'layout' => $layout,
                     'showpast' => $showPast,
                     'daysinadvance' => $daysInAdvance,
                     'limit' => $limit,