feat: add PostgreSQL web installation wizard

oa-backend/src/main/java/com/kaidi/oa/seed/FinancingDomainSeeder.java

@@ -13,7 +13,6 @@ import com.kaidi.oa.repository.PmtBankRelationRepository;
 import com.kaidi.oa.repository.RepaymentPlanRepository;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.core.annotation.Order;
-import org.springframework.stereotype.Component;
 
 import java.math.BigDecimal;
 import java.time.Instant;
@@ -24,7 +23,7 @@ import java.time.Instant;
  * 只在对应表为空时执行，防止重复。@Order(20) 在 DataSeeder(@Order(1)) 之后运行。
  */
 @Order(20)
-@Component
+@DemoSeed
 public class FinancingDomainSeeder implements CommandLineRunner {
 
     private final PmtBankRelationRepository bankRelRepo;