feat(players): NPC disposition types and launch-with-players session tokens

Add Hostile/Neutral/Friendly ring types with session-only inactive overrides on control, plus launch-with-players flow and live player tokens on the map.

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

app/main/players/sceneNpcTokensSessionStore.test.ts

@@ -30,3 +30,31 @@ void test('SceneNpcTokensSessionStore setScale', () => {
   assert.equal(s3.scale, DEFAULT_NPC_TOKEN_SESSION_SCALE);
   assert.deepEqual(s3.byPlacementId, {});
 });
+
+void test('SceneNpcTokensSessionStore setDisposition without inventing position', () => {
+  const store = new SceneNpcTokensSessionStore();
+  const s1 = store.dispatch({
+    kind: 'setDisposition',
+    placementId: 'a',
+    disposition: 'hostile',
+  });
+  assert.equal(s1.byPlacementId.a?.disposition, 'hostile');
+  assert.equal(s1.byPlacementId.a?.nx, undefined);
+  assert.equal(s1.byPlacementId.a?.ny, undefined);
+  const s2 = store.dispatch({ kind: 'move', placementId: 'a', nx: 0.4, ny: 0.6 });
+  assert.equal(s2.byPlacementId.a?.nx, 0.4);
+  assert.equal(s2.byPlacementId.a?.disposition, 'hostile');
+});
+
+void test('SceneNpcTokensSessionStore setInactive is session flag', () => {
+  const store = new SceneNpcTokensSessionStore();
+  const s1 = store.dispatch({ kind: 'setInactive', placementId: 'a', inactive: true });
+  assert.equal(s1.byPlacementId.a?.inactive, true);
+  const s2 = store.dispatch({ kind: 'setInactive', placementId: 'a', inactive: false });
+  assert.deepEqual(s2.byPlacementId, {});
+  store.dispatch({ kind: 'move', placementId: 'a', nx: 0.2, ny: 0.3 });
+  store.dispatch({ kind: 'setInactive', placementId: 'a', inactive: true });
+  const s3 = store.dispatch({ kind: 'setInactive', placementId: 'a', inactive: false });
+  assert.equal(s3.byPlacementId.a?.nx, 0.2);
+  assert.equal(s3.byPlacementId.a?.inactive, undefined);
+});