feat(players): app Players library and circular NPC tokens on scenes

Add userData players/teams, scene npcTokens with hex-inscribed sizing, session scale synced to presentation, and Playwright e2e coverage.

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

app/main/foundry/foundryImport.ts

@@ -387,6 +387,7 @@ export async function buildProjectFromFoundryDocuments(
       darkenScene: false,
       traps: [],
       tokens: [],
+      npcTokens: [],
       grid: { enabled: false, type: 'square', sizeN: 0.06, color: '#ffffff' },
       media: { videos: [], audios: audioRefs },
       settings: {
@@ -446,6 +447,9 @@ export async function buildProjectFromFoundryDocuments(
       x: 80 + (npcIndex % 4) * 220,
       y: 80 + Math.floor(npcIndex / 4) * 200,
       groupId,
+      ringColor: '#c9a227',
+      imageOffset: { x: 0, y: 0 },
+      imageScale: 1,
     });
     npcIndex += 1;
   }