Set default characters by game when none are selected (#104)

src/shared/fighting-characters.ts

@@ -14,6 +14,17 @@ const characterNamesByGame: Record<string, string[]> = {
   'TEKKEN 8': ['Alisa', 'Anna', 'Armor King', 'Asuka', 'Azucena', 'Bob', 'Bryan', 'Claudio', 'Clive', 'Devil Jin', 'Dragunov', 'Eddy', 'Fahkumram', 'Feng', 'Heihachi', 'Hwoarang', 'Jack-8', 'Jin', 'Jun', 'Kazuya', 'King', 'Kuma', 'Kunimitsu', 'Lars', 'Law', 'Lee', 'Leo', 'Leroy', 'Lidia', 'Lili', 'Miary Zo', 'Nina', 'Panda', 'Paul', 'Raven', 'Reina', 'Roger Jr', 'Shaheen', 'Steve', 'Victor', 'Xiaoyu', 'Yoshimitsu', 'Zafina'],
 };
 
+const defaultCharacterPairByGame: Record<string, { leftCharacter: string; rightCharacter: string }> = {
+  'Street Fighter 6': {
+    leftCharacter: 'ryu',
+    rightCharacter: 'chun-li',
+  },
+  'TEKKEN 8': {
+    leftCharacter: 'jin',
+    rightCharacter: 'kazuya',
+  },
+};
+
 const paletteByGame: Record<string, GamePalette> = {
   'Street Fighter 6': ['#f97316', '#b91c1c'],
   'TEKKEN 8': ['#2563eb', '#111827'],
@@ -102,3 +113,5 @@ export const fightingCharactersByGame: Record<string, FightingCharacterOption[]>
 );
 
 export const getCharactersByGame = (game: string) => fightingCharactersByGame[game] ?? [];
+
+export const getDefaultCharactersByGame = (game: string) => defaultCharacterPairByGame[game];