fix: align org chart hierarchy and typography weights

packages/org-chart/src/data/examples.test.ts

@@ -1,6 +1,8 @@
 import test from 'node:test';
 import assert from 'node:assert/strict';
 import fixture from '../../../../examples/org-chart/data-expanded-large.json';
+import small from '../../../../examples/org-chart/data-expanded-small.json';
+import medium from '../../../../examples/org-chart/data-expanded-medium.json';
 import { companyColorPresets, type CompanyId } from '../company-color-presets.js';
 import {
   calculateSummary, createOrgChartExampleDataset, JsonOrgChartDataSource,
@@ -20,17 +22,34 @@ function assertContract(dataset: OrgChartDataset) {
   assert.equal(new Set(dataset.affiliations.map(affiliation => affiliation.id)).size, dataset.affiliations.length);
   const summary = calculateSummary(dataset).raw;
   assert.equal(summary.total, dataset.employees.length, 'leaders count once as employees');
-  const pending = normalizeOrgChartDataset(dataset).roots.map(node => ({ node, depth: 1 }));
+  const pending = normalizeOrgChartDataset(dataset).roots.map(node => ({ node, depth: 1, underCell: false }));
   let maximumDepth = 0;
   while (pending.length) {
-    const { node, depth } = pending.pop()!;
+    const { node, depth, underCell } = pending.pop()!;
+    assert.ok(!(underCell && node.organization.type === 'team'), `team ${node.organization.id} must not descend from a cell`);
     maximumDepth = Math.max(maximumDepth, depth);
-    pending.push(...node.children.map(child => ({ node: child, depth: depth + 1 })));
+    pending.push(...node.children.map(child => ({ node: child, depth: depth + 1, underCell: underCell || node.organization.type === 'cell' })));
   }
   assert.ok(maximumDepth >= 3);
   assert.ok(new Set(Object.values(summary.byOrganization).map(value => value.direct)).size > 1, 'unequal organization membership');
 }
 
+test('generated small/medium/large fixtures follow the hierarchy, retaining team -> cell examples', () => {
+  for (const dataset of [small, medium, fixture] as OrgChartDataset[]) assertContract(dataset);
+  const byId = new Map(base.organizations.map(org => [org.id, org]));
+  const cells = base.organizations.filter(org => org.type === 'cell');
+  assert.equal(cells.length, companies.length * 2);
+  for (const cell of cells) assert.equal(byId.get(cell.parentId!)!.type, 'team');
+});
+
+test('hierarchy regression check rejects a team below an indirect cell ancestor', () => {
+  const invalid = structuredClone(base);
+  const office = invalid.organizations.find(org => org.id === 'hanmac-office-sibling')!;
+  office.parentId = 'hanmac-cell-0';
+  invalid.organizations.find(org => org.id === 'hanmac-team-sibling')!.parentId = office.id;
+  assert.throws(() => assertContract(invalid), /must not descend from a cell/);
+});
+
 for (const employeeCount of sizes) {
   test(`total ${employeeCount} contains exactly that many unique employees across all seven preset companies`, () => {
     const dataset = createOrgChartExampleDataset(base, { scope: 'total', employeeCount });