feat: add signed PostgreSQL release updates

oa-backend/src/main/java/com/kaidi/oa/domain/FertSupplierProfile.java

@@ -5,7 +5,6 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
-import jakarta.persistence.Lob;
 import jakarta.persistence.Table;
 
 import java.time.Instant;
@@ -68,7 +67,6 @@ public class FertSupplierProfile {
     private String licenseDoc;
 
     /** 补充资质 JSON（扩展字段 {"有机认证":"有","产品标准":"QB/T xxxx",...}）。 */
-    @Lob
     @Column(columnDefinition = "text")
     private String admitDocsJson;