Regenerate seed data with Go fetch tool

Updated all game JSON files with data from the new Go-based PokeAPI
fetcher. Includes corrected encounter data and form identification.

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

backend/src/app/seeds/data/alpha-sapphire.json

@@ -93,4 +93,4 @@
       }
     ]
   }
-]
+]