fix: update Dockerfile to compile seed script and run it before starting the application

nest-backend/Dockerfile

@@ -10,6 +10,7 @@ RUN npm ci
 COPY . .
 RUN npx prisma generate
 RUN npm run build
+RUN npx tsc --module commonjs --target ES2022 --esModuleInterop --skipLibCheck --outDir dist prisma/seed.ts
 
 FROM node:22-slim
 
@@ -28,4 +29,4 @@ COPY prisma ./prisma
 
 EXPOSE 3000
 
-CMD ["sh", "-c", "npx prisma migrate deploy && node dist/index.js"]
+CMD ["sh", "-c", "npx prisma migrate deploy && node dist/seed.js && node dist/index.js"]