Added protecting hooks

dist/modules/hooks/trackSlugHistory.d.ts

@@ -0,0 +1,17 @@
+import type { CollectionBeforeChangeHook } from 'payload';
+/**
+ * When a document's slug changes, appends the OLD slug to a `slugHistory` array
+ * field. The project reads slugHistory to serve a 301 redirect from old URLs to
+ * the current one — so changing a slug doesn't 404 the old address (a real SEO
+ * loss / audit finding).
+ *
+ * Requires a `slugHistory` field on the collection:
+ *   { name: 'slugHistory', type: 'array', fields: [{ name: 'slug', type: 'text' }],
+ *     admin: { readOnly: true } }
+ *
+ *   hooks: { beforeChange: [trackSlugHistoryHook] }
+ *
+ * The project then, in resolveRoute or a redirect check, looks up slugHistory and
+ * 301s to the current slug. See docs/hooks.md.
+ */
+export declare const trackSlugHistoryHook: CollectionBeforeChangeHook;