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/data/movement-lineage.ts

@@ -1,10 +1,12 @@
 /**
- * Documented art-historical movement lineage (predecessor → successor).
- * Sources: Met Museum essays, TheArtStory, Sotheby's movement guides.
- *
+ * Art-historical movement lineage (predecessor → successor).
+ * Defaults match museum essays; live data comes from GET /api/movement-links.
  * Multiple parents are allowed (e.g. Post-Impressionism feeding several modern paths).
  */
-export const MOVEMENT_LINEAGE: ReadonlyArray<readonly [parent: string, child: string]> = [
+
+export type MovementLineageEdge = readonly [parent: string, child: string];
+
+export const FALLBACK_MOVEMENT_LINEAGE: ReadonlyArray<MovementLineageEdge> = [
   // Classical & medieval
   ['Ancient Greek & Roman', 'Byzantine'],
   ['Byzantine', 'Gothic'],
@@ -21,17 +23,17 @@ export const MOVEMENT_LINEAGE: ReadonlyArray<readonly [parent: string, child: st
   ['Rococo', 'Neoclassicism'],
   ['Neoclassicism', 'Romanticism'],
   ['Romanticism', 'Realism'],
-  ['Romanticism', 'Impressionism'], // Turner, Delacroix → light and atmosphere
+  ['Romanticism', 'Impressionism'],
   ['Realism', 'Impressionism'],
 
-  // Modern origins (Met / ArtStory: Impressionism → Post-Impressionism → …)
+  // Modern origins
   ['Impressionism', 'Post-Impressionism'],
   ['Post-Impressionism', 'Symbolism'],
   ['Post-Impressionism', 'Fauvism'],
   ['Post-Impressionism', 'Expressionism'],
-  ['Post-Impressionism', 'Cubism'], // Cézanne's structure → Picasso/Braque
+  ['Post-Impressionism', 'Cubism'],
   ['Symbolism', 'Art Nouveau'],
-  ['Fauvism', 'Cubism'], // Braque, Matisse → geometric turn
+  ['Fauvism', 'Cubism'],
   ['Cubism', 'Futurism'],
   ['Cubism', 'Suprematism'],
   ['Cubism', 'Constructivism'],
@@ -43,10 +45,35 @@ export const MOVEMENT_LINEAGE: ReadonlyArray<readonly [parent: string, child: st
   ['Abstract Expressionism', 'Pop Art'],
 ];
 
+let activeLineage: ReadonlyArray<MovementLineageEdge> = FALLBACK_MOVEMENT_LINEAGE;
+
+/** Active edges for timeline / tree layout (API-backed when loaded). */
+export function getMovementLineage(): ReadonlyArray<MovementLineageEdge> {
+  return activeLineage;
+}
+
+/** Apply curator DB rows; empty list keeps the static fallback. */
+export function setMovementLineageFromApi(
+  items: ReadonlyArray<{ source_name: string; target_name: string }>
+): void {
+  if (!items.length) {
+    activeLineage = FALLBACK_MOVEMENT_LINEAGE;
+    return;
+  }
+  activeLineage = items.map((row) => [row.source_name, row.target_name] as const);
+}
+
+/** @deprecated Use getMovementLineage() — alias for older imports. */
+export const MOVEMENT_LINEAGE = FALLBACK_MOVEMENT_LINEAGE;
+
 export function lineageParentsByName(childName: string): string[] {
-  return MOVEMENT_LINEAGE.filter(([, child]) => child === childName).map(([parent]) => parent);
+  return getMovementLineage()
+    .filter(([, child]) => child === childName)
+    .map(([parent]) => parent);
 }
 
 export function lineageChildrenByName(parentName: string): string[] {
-  return MOVEMENT_LINEAGE.filter(([parent]) => parent === parentName).map(([, child]) => child);
+  return getMovementLineage()
+    .filter(([parent]) => parent === parentName)
+    .map(([, child]) => child);
 }