feat(org-chart): add core cards and fixed-layout integration

packages/org-chart/src/core/affiliation-mark.ts

@@ -0,0 +1,45 @@
+import hanmac from '../assets/affiliations/hanmac.png?inline';
+import saman from '../assets/affiliations/saman.png?inline';
+import jangheon from '../assets/affiliations/jangheon.png?inline';
+import jangheonIndustry from '../assets/affiliations/jangheon-industry.png?inline';
+import ptc from '../assets/affiliations/ptc.png?inline';
+import halla from '../assets/affiliations/halla.png?inline';
+import baron from '../assets/affiliations/baron.png?inline';
+
+// Asset mapping is an internal presentation concern; the employee/affiliation
+// JSON contract continues to use only its existing id and name fields.
+const logos = new Map<string, string>([
+  ['hanmac', hanmac], ['saman', saman], ['jangheon', jangheon],
+  ['jangheon-industry', jangheonIndustry], ['ptc', ptc], ['halla', halla], ['baron', baron],
+]);
+
+/** Shared by employee cards and the affiliation summary footer. */
+export function createAffiliationMark(
+  document: Document, affiliationId: string, name: string, signal?: AbortSignal,
+): HTMLElement {
+  const mark = document.createElement('span');
+  mark.className = 'hm-orgchart-affiliation-mark';
+  mark.dataset.affiliationId = affiliationId;
+  mark.setAttribute('role', 'img');
+  mark.setAttribute('aria-label', `관계사 ${name}`);
+  mark.title = name;
+  const fallback = document.createElement('span');
+  fallback.className = 'hm-orgchart-affiliation-fallback';
+  fallback.textContent = Array.from(name.trim()).slice(0, 2).join('') || '?';
+  mark.append(fallback);
+
+  const logo = logos.get(affiliationId);
+  mark.dataset.logoAvailable = String(Boolean(logo));
+  if (logo) {
+    const image = document.createElement('img');
+    image.alt = '';
+    image.decoding = 'async';
+    image.addEventListener('error', () => {
+      image.remove();
+      mark.dataset.logoAvailable = 'false';
+    }, { once: true, ...(signal ? { signal } : {}) });
+    image.src = logo;
+    mark.append(image);
+  }
+  return mark;
+}