Backend of the sub-market template (spec agreed section by section with

the customer workflow in mind: the customer fills one XLSX per sub-market,
an importer builds the page).

- Frontend layout 21 'Sub-Market Page' in the existing
  BackendLayoutDataProvider: six zones, one per Figma section, emitted as
  colPos110..colPos160 - the JSON groups plus appearance.layout are the
  front-end contract (spec clause 7.17). A first attempt via page-TSconfig
  BackendLayouts was the wrong mechanism next to the provider and was
  removed again
- New Content Blocks vitec_markethero, vitec_marketintro,
  vitec_marketinsights (field bags, serialized unprefixed under data);
  the workflow section reuses intro-paragraph + vitec_card flip cards
- Stories gained quote/quote_person/quote_role (Testimonial tab),
  maintained once per story, emitted on every story card; usecaselist
  gained the layout value 'testimonials'
- New plugin vitec_productfeature: one referenced product as a full
  product card, serialisation shared with the product list (cObj made
  protected for the subclass)
- vitec_productlist gained hand-picked product selection: exactly the
  chosen products in the editor's order, category filter ignored,
  visibility filters kept - closes the long-standing single-select gap
- New CLI vitec:generate-submarket-workbooks: one protected customer
  XLSX per sub-market (9 main markets, 25 sub-markets from the Market
  category tree) - dropdowns filled live from the database, named ranges
  as the importer contract, hidden Meta sheet pinning submarket/group/
  record uid, soft character-limit warnings, asset URL fields

Verified end to end on Broadcast & Media: layout-21 payload with colPos110
carrying the hero element and its subline. Spec raised to v1.20.

packages/vitec/Classes/View/BackendLayoutDataProvider.php

@@ -27,6 +27,15 @@ final class BackendLayoutDataProvider implements DataProviderInterface
         'hero'      => 1,
         'sidebar'   => 2,
         'preFooter' => 3,
+        // Sub-market template sections (spec 2026-10-01): one slot per Figma
+        // section. The headless JSON groups these as colPos110..colPos160 -
+        // that grouping IS the front-end contract for layout 21.
+        'smHero'         => 110,
+        'smIntro'        => 120,
+        'smWorkflow'     => 130,
+        'smTestimonials' => 140,
+        'smProducts'     => 150,
+        'smInsights'     => 160,
     ];
 
     /** Per-frontend-layout: title + ordered list of zones. */
@@ -52,6 +61,7 @@ final class BackendLayoutDataProvider implements DataProviderInterface
         18 => ['title' => 'Content Page V3',        'zones' => ['hero', 'main', 'sidebar', 'preFooter']],
         19 => ['title' => 'Events Overview',        'zones' => ['hero', 'main']],
         20 => ['title' => 'Contact Page',           'zones' => ['hero', 'main', 'sidebar']],
+        21 => ['title' => 'Sub-Market Page',        'zones' => ['smHero', 'smIntro', 'smWorkflow', 'smTestimonials', 'smProducts', 'smInsights']],
     ];
 
     /** Display name for each zone. Shown as column header in the BE page module. */
@@ -60,6 +70,12 @@ final class BackendLayoutDataProvider implements DataProviderInterface
         'hero'      => 'Hero',
         'sidebar'   => 'Sidebar',
         'preFooter' => 'Pre-Footer',
+        'smHero'         => '1 · Hero',
+        'smIntro'        => '2 · Intro',
+        'smWorkflow'     => '3 · Workflow (header + flip cards)',
+        'smTestimonials' => '4 · Testimonials',
+        'smProducts'     => '5 · Products (featured + list)',
+        'smInsights'     => '6 · Industry Insights',
     ];
 
     public function getIdentifier(): string