update real data

supabase/migrations/003_add_display_name.sql

@@ -0,0 +1,5 @@
+-- Migration 003: add display_name to user_gamification for leaderboard
+-- Run in Supabase Dashboard → SQL Editor (after 002_gamification.sql)
+
+ALTER TABLE user_gamification
+  ADD COLUMN IF NOT EXISTS display_name TEXT;