fix: correct Supabase anon key (was using wrong JWT)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/env.ts

 export const ENV = {
   SUPABASE_URL: 'https://safe-supabase-kong.caprover.al-arcade.com',
-  SUPABASE_ANON_KEY: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJyb2xlIjoiYW5vbiIsImlzcyI6InN1cGFiYXNlIiwiaWF0IjoxNzM1Njg5NjAwLCJleHAiOjE4OTM0NTYwMDB9.bFnS-YBhykTQ6vqrfTKJqmAB_aSW6GUgCat3QLkgCv8',
+  SUPABASE_ANON_KEY: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJyb2xlIjoiYW5vbiIsImlzcyI6InN1cGFiYXNlIiwiaWF0IjoxNzM1Njg5NjAwLCJleHAiOjE4OTM0NTYwMDB9.31PF6PvP-pSrvRuQwLFptQoejR0W1A7o53lZhEbnz84',
   APP_URL: 'https://el3ab-player.caprover.al-arcade.com',
   STOCKFISH_API: 'https://stockfishapi.caprover.al-arcade.com',
 } as const;