Add curator Movement links config with proof URLs and admin-gated delete votes.

Persist lineage in PostgreSQL, seed documented edges, and keep timeline/tree consumers API-backed with a static fallback.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/locales/en/home.json

@@ -15,6 +15,7 @@
   "checkup": "Checkup",
   "translations": "Translations",
   "influences": "Influences",
+  "movementLinks": "Movement links",
   "tours": "Tours",
   "toursEditor": "Tour editor",
   "users": "Users",