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/ContentBlocks/ContentElements/hero-section/language/labels.xlf

@@ -102,6 +102,28 @@
       <trans-unit id="hero_bgimage.description">
         <source>Optional background image placed behind the hero content.</source>
       </trans-unit>
+      <trans-unit id="tab_content.label">
+        <source>Content</source>
+      </trans-unit>
+      <trans-unit id="tab_images.label">
+        <source>Images</source>
+      </trans-unit>
+      <trans-unit id="tab_video.label">
+        <source>Video</source>
+      </trans-unit>
+      <trans-unit id="hero_bgvideo.label">
+        <source>Background Video</source>
+      </trans-unit>
+      <trans-unit id="hero_bgvideo.description">
+        <source>Fullscreen background video behind the hero content.</source>
+      </trans-unit>
+      <trans-unit id="hero_overlay_color.label">
+        <source>Overlay Color</source>
+      </trans-unit>
+      <trans-unit id="hero_overlay_opacity.label">
+        <source>Overlay Opacity (0–1)</source>
+      </trans-unit>
+
     </body>
   </file>
 </xliff>