added character stuff

src/app/repositories/character.repository.ts

@@ -0,0 +1,20 @@
+import prisma from '../utilities/prisma'; // Import the global Prisma instance
+import {Character} from '@prisma/client';
+import CharacterService from "../services/character.service";
+
+class CharacterRepository {
+    async getByUserId(userId: number): Promise<Character[] | null> {
+        try {
+            return await prisma.character.findMany({
+                where: {
+                    userId,
+                },
+            });
+        } catch (error: any) {
+            // Handle error
+            throw new Error(`Failed to get character by user ID: ${error.message}`);
+        }
+    }
+}
+
+export default new CharacterService;