홈 피드와 템플릿 분리

frontend/src/lib/display.js

@@ -0,0 +1,9 @@
+export function displayInitialFrom(primaryName = '', fallbackName = '', emptyValue = 'U') {
+  const primary = String(primaryName || '').trim()
+  if (primary) return Array.from(primary)[0] || emptyValue
+
+  const fallback = String(fallbackName || '').trim()
+  if (fallback) return Array.from(fallback)[0] || emptyValue
+
+  return emptyValue
+}