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/renderer/shared/ui/secondaryWindows.stability.test.ts

@@ -70,3 +70,52 @@ void test('WindowErrorBoundary component exists and catches errors', () => {
   assert.ok(src.includes('componentDidCatch'));
   assert.ok(src.includes('role="alert"'));
 });
+
+void test('EditorApp: Players header after File, opens modal', () => {
+  const src = fs.readFileSync(path.join(rendererRoot, 'editor/EditorApp.tsx'), 'utf8');
+  const fileIdx = src.indexOf("t('top.file')");
+  const playersIdx = src.indexOf('data-testid="players-header-btn"');
+  assert.ok(fileIdx > 0, 'File menu present');
+  assert.ok(playersIdx > fileIdx, 'Players button must follow File in source order');
+  assert.ok(src.includes('PlayersManagerModal'));
+  assert.ok(src.includes('setPlayersManagerOpen(true)'));
+});
+
+void test('Players modal: flat teams only, progress overlay, PlayerTokenView', () => {
+  const src = fs.readFileSync(path.join(rendererRoot, 'editor/PlayersModals.tsx'), 'utf8');
+  assert.ok(src.includes('PlayerTokenView'));
+  assert.ok(src.includes('data-testid="players-modal"'));
+  assert.ok(src.includes('data-testid="players-save-progress"'));
+  assert.doesNotMatch(src, /parentId|подкоманд|subteam|sub-team/i);
+  assert.ok(src.includes("application/x-dnd-player-id"));
+});
+
+void test('Scene NPC accordion: separate mime and PlayerTokenView markers', () => {
+  const scene = fs.readFileSync(path.join(rendererRoot, 'sceneEditor/SceneEditorApp.tsx'), 'utf8');
+  const tokenTile = fs.readFileSync(path.join(rendererRoot, 'sceneEditor/TokenTile.tsx'), 'utf8');
+  assert.ok(scene.includes('data-testid="scene-npc-accordion"'));
+  assert.ok(scene.includes("application/x-dnd-scene-npc-id"));
+  assert.ok(tokenTile.includes("application/x-dnd-app-token-id"));
+  assert.notEqual(
+    'application/x-dnd-scene-npc-id',
+    'application/x-dnd-app-token-id',
+    'NPC scene mime must differ from app token mime',
+  );
+  assert.ok(scene.includes('PlayerTokenView'));
+  assert.ok(scene.includes('persistNpcTokens([])'));
+  assert.doesNotMatch(scene, /SceneTokenMarker[\s\S]{0,80}npcTokens/);
+});
+
+void test('Control and Presentation use SceneNpcTokensOverlay', () => {
+  const control = fs.readFileSync(path.join(rendererRoot, 'control/ControlApp.tsx'), 'utf8');
+  const presentation = fs.readFileSync(path.join(rendererRoot, 'shared/PresentationView.tsx'), 'utf8');
+  assert.ok(control.includes('SceneNpcTokensOverlay'));
+  assert.ok(presentation.includes('SceneNpcTokensOverlay'));
+  assert.ok(control.includes('sceneNpcTokensSession'));
+});
+
+void test('NpcsEditorApp: token appearance via PlayerTokenView', () => {
+  const src = fs.readFileSync(path.join(rendererRoot, 'npcs/NpcsEditorApp.tsx'), 'utf8');
+  assert.ok(src.includes('PlayerTokenView'));
+  assert.ok(src.includes('ringColor') || src.includes('updateNpcFields'));
+});