fix: complete first version issue remediation

src/utils/dateTime.ts

@@ -0,0 +1,7 @@
+export function formatDateTime(value?: string | Date | null) {
+  if (!value) return '-';
+  const date = new Date(value);
+  if (Number.isNaN(date.getTime())) return '-';
+  const pad = (part: number) => String(part).padStart(2, '0');
+  return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())} ${pad(date.getHours())}:${pad(date.getMinutes())}:${pad(date.getSeconds())}`;
+}

src/utils/fileName.ts

@@ -0,0 +1,13 @@
+export function displayFileName(value: string) {
+  if (!value || ![...value].some((character) => character.charCodeAt(0) > 0x7f) || [...value].some((character) => character.charCodeAt(0) > 0xff)) {
+    return value;
+  }
+
+  try {
+    const bytes = Uint8Array.from(value, (character) => character.charCodeAt(0));
+    const decoded = new TextDecoder('utf-8', { fatal: true }).decode(bytes);
+    return decoded === value ? value : decoded;
+  } catch {
+    return value;
+  }
+}