refactor(data): merge DTO models into schemas

src/data/schemas/character/character.ts

@@ -11,3 +11,27 @@ export const CharacterSchema = z.object({
 
 export type CharacterInput = z.input<typeof CharacterSchema>;
 export type CharacterData = z.output<typeof CharacterSchema>;
+
+export class Character {
+  declare readonly id: string;
+  declare readonly slug: string;
+  declare readonly displayName: string;
+  declare readonly avatarUrl: string;
+
+  private constructor(input: CharacterInput) {
+    Object.assign(this, CharacterSchema.parse(input));
+    Object.freeze(this);
+  }
+
+  static from(input: CharacterInput): Character {
+    return new Character(input);
+  }
+
+  static fromJson(json: unknown): Character {
+    return Character.from(json as CharacterInput);
+  }
+
+  toJson(): CharacterData {
+    return CharacterSchema.parse(this);
+  }
+}