Clean seller metadata display names

src/displayFormatters.ts

@@ -0,0 +1,26 @@
+const SMALL_WORDS = new Set(['da', 'de', 'do', 'das', 'dos', 'e']);
+
+export const removeTrailingSellerId = (value: string) => {
+  return value.replace(/\s*#\d+\s*$/, '').trim();
+};
+
+export const formatDisplayName = (value: string) => {
+  const normalized = String(value || '').replace(/\s+/g, ' ').trim();
+  if (!normalized) return '';
+
+  const withoutSellerId = removeTrailingSellerId(normalized);
+  const withoutNumericPrefix = withoutSellerId.replace(/^\[\d+\]\s*/, '').trim();
+  const isUppercaseName = /[A-ZÁÀÂÃÉÈÊÍÏÓÔÕÖÚÇÑ]/.test(withoutNumericPrefix) &&
+    withoutNumericPrefix === withoutNumericPrefix.toUpperCase();
+
+  if (!isUppercaseName) return withoutNumericPrefix;
+
+  return withoutNumericPrefix
+    .toLocaleLowerCase('pt-BR')
+    .split(' ')
+    .map((word, index) => {
+      if (index > 0 && SMALL_WORDS.has(word)) return word;
+      return word.charAt(0).toLocaleUpperCase('pt-BR') + word.slice(1);
+    })
+    .join(' ');
+};