SSR auto-purge: purge only the pages that show a saved record, megamenu purges everything

SsrPurgeTargetResolver finds the paths of a saved VITEC or news record: its detail URL, the pages that select it (sys_refindex), product lists by category or all products, list plugins of its type and the records embedding it one level deep. URL, visibility and timing changes, the newest news, events, unknown tables and more than 150 paths still purge everything. Megamenu records and the megamenu element now purge everything (before: only its storage page). New read-only command vitec:ssr-purge-targets shows what a save would purge. Reference index rebuilt (117 updates).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/vitec/Configuration/Sets/Vitecset/settings.definitions.yaml

@@ -130,7 +130,7 @@ settings:
 
   vitec.ssr.autoPurge:
     label: 'SSR auto-purge on editor changes'
-    description: 'ON: saving pages/content/news automatically evicts the affected pages from the SSR page cache (menu-relevant changes evict everything). OFF: the SSR cache refreshes only by its TTL (5 min) or manual purge. Only relevant while SSR delivery is ON.'
+    description: 'ON: saving pages, content, news or VITEC records automatically evicts the pages that show them from the SSR page cache - a product only from its detail page and the lists that contain it. Menu-relevant changes (titles, URLs, visibility), the newest news, events and the megamenu evict everything. OFF: the SSR cache refreshes only by its TTL (5 min) or manual purge. Only relevant while SSR delivery is ON.'
     category: VITEC
     type: bool
     default: true