Add movement gallery wings with period interiors and expand timeline features.

Movement galleries split large catalogs into chronological wings (~55 works), use era-themed 3D interiors with side-wall windows, wing navigator on the back exit, and front archways between wings. Also adds painting annotations, timeline event guides, portrait hover highlights, and documentation/API updates.

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

client/src/data/historical-events.ts

@@ -11,10 +11,19 @@ export interface HistoricalEvent {
 
 export const HISTORICAL_EVENTS: readonly HistoricalEvent[] = [
   { id: 'fall-rome', name: 'Fall of Rome', startYear: 476 },
+  { id: 'charlemagne', name: 'Charlemagne crowned emperor', startYear: 800 },
+  { id: 'battle-hastings', name: 'Battle of Hastings', startYear: 1066 },
+  { id: 'first-crusade', name: 'First Crusade', startYear: 1096, endYear: 1099 },
+  { id: 'magna-carta', name: 'Magna Carta', startYear: 1215 },
   { id: 'black-death', name: 'Black Death', startYear: 1347 },
   { id: 'printing-press', name: 'Printing press', startYear: 1450 },
-  { id: 'reformation', name: 'Protestant Reformation', startYear: 1517 },
+  { id: 'fall-constantinople', name: 'Fall of Constantinople', startYear: 1453 },
   { id: 'columbus', name: 'Columbus reaches the Americas', startYear: 1492 },
+  { id: 'reformation', name: 'Protestant Reformation', startYear: 1517 },
+  { id: 'thirty-years-war', name: 'Thirty Years\' War', startYear: 1618, endYear: 1648, shortLabel: '30 Years\' War' },
+  { id: 'english-civil-war', name: 'English Civil War', startYear: 1642, endYear: 1651 },
+  { id: 'glorious-revolution', name: 'Glorious Revolution', startYear: 1688 },
+  { id: 'war-spanish-succession', name: 'War of the Spanish Succession', startYear: 1701, endYear: 1714, shortLabel: 'Spanish Succession' },
   { id: 'american-revolution', name: 'American Revolution', startYear: 1776 },
   { id: 'french-revolution', name: 'French Revolution', startYear: 1789 },
   { id: 'waterloo', name: 'Battle of Waterloo', startYear: 1815 },