Fix ReferenceError in renderDates/renderWikiCards — add idx parameter to forEach callbacks

js/main.js

@@ -693,7 +693,7 @@ function renderWikiCards(data) {
   // Sort by updatedAt descending (newest first)
   const sorted = [...data].sort((a, b) => new Date(b.updatedAt || b.createdAt) - new Date(a.updatedAt || a.createdAt));
   
-  sorted.forEach(item => {
+  sorted.forEach((item, idx) => {
     const card = document.createElement('div');
     card.className = 'wiki-card-new stagger-' + (idx % 4 + 1);
     card.setAttribute('role', 'button');
@@ -843,7 +843,7 @@ function renderDates(events) {
   // Sort events by date
   const sorted = events.sort((a, b) => new Date(a.start) - new Date(b.start));
   
-  sorted.forEach(event => {
+  sorted.forEach((event, idx) => {
     const card = document.createElement('div');
     card.className = 'date-card stagger-' + (idx % 4 + 1);