Fix timezone-independent date display

src/components/timeline/TimelineEventCard.tsx

@@ -3,6 +3,7 @@ import { Button } from '@/components/ui/button';
 import { Card, CardContent } from '@/components/ui/card';
 import { Badge } from '@/components/ui/badge';
 import { format } from 'date-fns';
+import { parseDateForDisplay } from '@/lib/dateUtils';
 import type { TimelineEvent } from '@/types/timeline';
 
 interface TimelineEventCardProps {
@@ -14,8 +15,10 @@ interface TimelineEventCardProps {
   isPending?: boolean;
 }
 
+// ⚠️ IMPORTANT: Use parseDateForDisplay to prevent timezone shifts
+// YYYY-MM-DD strings must be interpreted as local dates, not UTC
 const formatEventDate = (date: string, precision: string = 'day') => {
-  const dateObj = new Date(date);
+  const dateObj = parseDateForDisplay(date);
   
   switch (precision) {
     case 'year':