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/quotation/config.yaml

@@ -0,0 +1,44 @@
+name: vitec/quotation
+group: vitec_custom_components
+prefixFields: true
+prefixType: vendor
+
+fields:
+  - identifier: header_section
+    type: Palette
+    label: Header
+    fields:
+      - identifier: header
+        useExistingField: true
+      - type: Linebreak
+      - identifier: header_layout
+        useExistingField: true
+      - identifier: header_position
+        useExistingField: true
+      - identifier: date
+        useExistingField: true
+      - type: Linebreak
+      - identifier: header_link
+        useExistingField: true
+      - type: Linebreak
+      - identifier: subheader
+        useExistingField: true
+
+  - identifier: quote
+    type: Textarea
+    required: true
+    rows: 5
+
+  - identifier: quote_name
+    type: Text
+    max: 120
+
+  - identifier: quote_position
+    type: Text
+    max: 180
+
+  - identifier: quote_logo
+    type: File
+    minitems: 0
+    maxitems: 1
+    allowed: common-image-types