⚠️ Update error handling to support both string and Error object types in TournamentDetail component

code/websites/pokedex.online/src/components/challonge/TournamentDetail.vue

@@ -35,7 +35,7 @@
     <!-- Error State -->
     <div v-else-if="error" class="detail-status error">
       <span class="error-icon">⚠️</span>
-      <span>{{ error }}</span>
+      <span>{{ errorMessage }}</span>
     </div>
 
     <!-- Details Content -->
@@ -69,7 +69,7 @@ const props = defineProps({
     default: false
   },
   error: {
-    type: String,
+    type: [String, Error],
     default: null
   },
   isExpanded: {
@@ -78,6 +78,15 @@ const props = defineProps({
   }
 });
 
+/**
+ * Format error message from string or Error object
+ */
+const errorMessage = computed(() => {
+  if (!props.error) return '';
+  if (typeof props.error === 'string') return props.error;
+  return props.error.message || 'An error occurred';
+});
+
 /**
  * Format tournament details as pretty-printed JSON
  */