Datapath stories, grid repairs, menu v2 pure, hero placeholders, fec test

Batch of 2026-10-28/29 plus 2026-11-03:

- NEW vitec:import-datapath-stories: 22 story packages from the agency
  dump (docx + Links/ assets) as usecase records with content, quotes,
  images, customer logos, download cards; --repair-quotes normalizes
  attribution lines; asset backfill for existing stories
- /products grid incident repaired (fix_products_grid, fix_graphics_grid,
  check_grid_page): containers unhidden, 46 duplicate cards soft-deleted,
  section order restored; BuildProductPortfolio and
  ImportProductCategoryPages now GUARD against re-runs on pages that
  already carry vitec_cols_% containers
- ' double-encoding fixed: render-pipeline importers write literal
  apostrophes (ENT_NOQUOTES), fix_double_entities literalizes existing rows
- ticket quick wins (ticket_quickwins_20261028), broadcast market page
  cleanup, AttachCardImages market-card handling, SubmarketWorkbook
  META REPAIR, story content/video fixes (fix_story_*)
- ProvideProductCatalog: transitional v1 fields removed (categories
  uid/link, legacyGroupFields, item products teaser) - pure v2 shape
  (ticket 0024-FE); search renderer keeps its teaser
- BuildProductOverviews: heroes get the numbered placeholder background
  (placeholders/pages/<uid>-01.png, wide grey fallback) - backfill on
  existing pages with empty hero_bgimage, attached at creation for new
  pages; existing references always win (ticket 0026-FE); 40 placeholder
  PNGs shipped to fileadmin (not tracked)
- AttachPageMedia: --depth=3 with sysfolders as pass-through parents for
  the overview pages' -08 menu tiles
- NEW migrations/fec_isolation_test.sh: two-user live test proving
  fe_comment ticket isolation (backend verified tight, cross-user
  sighting traced to the FE page-JSON cache, ticket 0027-BE)

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

migrations/fix_story_placeholder_quotes.php

@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Ticket 0017-FE Punkt 4: drei Alt-Stories tragen Platzhalter in
+ * quote/quote_person/quote_role (africa-hall: "Here Fu Manchu lalala.",
+ * bayer-uk: "This is a testimonial", meydan-racecourse: der Feldhilfetext).
+ * Auf Testimonial-Karten wuerden die erscheinen -> Felder leeren.
+ *
+ * Usage:  php migrations/fix_story_placeholder_quotes.php          (inspect)
+ *         php migrations/fix_story_placeholder_quotes.php --apply
+ */
+
+error_reporting(E_ALL);
+ini_set('display_errors', '1');
+
+const SLUGS = ['africa-hall', 'bayer-uk', 'meydan-racecourse'];
+
+$apply = in_array('--apply', $argv, true);
+
+$root = null;
+$dir = __DIR__;
+for ($i = 0; $i < 5; $i++) {
+    if (is_file($dir . '/config/system/settings.php')) {
+        $root = $dir;
+        break;
+    }
+    $dir = dirname($dir);
+}
+if ($root === null) {
+    exit("Could not locate project root above " . __DIR__ . "\n");
+}
+$settings = require $root . '/config/system/settings.php';
+$db = $settings['DB']['Connections']['Default'];
+$pdo = new PDO(
+    sprintf('mysql:host=%s;port=%s;dbname=%s;charset=utf8mb4', $db['host'] ?? 'localhost', $db['port'] ?? 3306, $db['dbname'] ?? ''),
+    $db['user'] ?? '',
+    $db['password'] ?? '',
+    [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC]
+);
+
+echo ($apply ? 'APPLY' : 'INSPECT') . "\n";
+$in = implode(',', array_fill(0, count(SLUGS), '?'));
+$stmt = $pdo->prepare("SELECT uid, slug, LEFT(quote,60) q, quote_person, quote_role
+    FROM tx_vitec_domain_model_usecase WHERE deleted = 0 AND slug IN ($in)");
+$stmt->execute(SLUGS);
+$rows = $stmt->fetchAll();
+foreach ($rows as $row) {
+    printf("#%-4d %-20s quote=\"%s\" person=\"%s\" role=\"%s\" -> leeren\n",
+        $row['uid'], $row['slug'], $row['q'], $row['quote_person'], $row['quote_role']);
+    if ($apply) {
+        $pdo->prepare("UPDATE tx_vitec_domain_model_usecase
+            SET quote = '', quote_person = '', quote_role = '', tstamp = UNIX_TIMESTAMP() WHERE uid = ?")
+            ->execute([(int)$row['uid']]);
+    }
+}
+echo count($rows) . " Record(s)" . ($apply ? " geleert. Danach cache:flush." : ". Mit --apply leeren.") . "\n";