Add basic client AI support

rc_database/src/migration/mod.rs

@@ -11,6 +11,7 @@ mod m20250713_000001_create_game_table;
 mod m20250713_000002_create_player_table;
 mod m20250722_000001_create_game_event_table;
 mod m20250816_000001_add_fake_players;
+mod m20250918_000001_add_player_variant;
 
 pub struct Migrator;
 
@@ -29,6 +30,7 @@ impl MigratorTrait for Migrator {
             Box::new(m20250713_000002_create_player_table::Migration),
             Box::new(m20250722_000001_create_game_event_table::Migration),
             Box::new(m20250816_000001_add_fake_players::Migration),
+            Box::new(m20250918_000001_add_player_variant::Migration),
         ]
     }
 }