fix: aggregate large ink groups safely

tests/content-model.test.ts

@@ -15,7 +15,10 @@ import {
   type OneNoteTextBlock,
 } from '../src/onenote/index.js';
 import type { ParserDiagnostic } from '../src/onenote/model/diagnostics.js';
-import { parseContentObjects } from '../src/onenote/one/content.js';
+import {
+  parseContentObjects,
+  unionInkBoundingBoxes,
+} from '../src/onenote/one/content.js';
 import { JCID, PROPERTY } from '../src/onenote/one/constants.js';
 import type {
   ExGuid,
@@ -209,6 +212,22 @@ describe('OneNote rich-content model', () => {
     expect(parsedPoints).toBeLessThanOrEqual(100);
   });
 
+  it('combines a large number of child ink bounds without argument spreading', () => {
+    const boxes = Array.from({ length: 200_000 }, (_, index) => ({
+      x: index,
+      y: -index,
+      width: 2,
+      height: 3,
+    }));
+
+    expect(unionInkBoundingBoxes([undefined, ...boxes])).toEqual({
+      x: 0,
+      y: -199_999,
+      width: 200_001,
+      height: 200_002,
+    });
+  });
+
   it('bounds retained rich text across content blocks', () => {
     const guid = '{33333333-3333-3333-3333-333333333333}';
     const firstId = id(guid, 1);