add server components for event_exceptions

server/src/entity/product.entity.ts

@@ -1,11 +1,10 @@
 // dvbooking-cli/src/templates/nestjs/entity.ts.tpl
 
 import { Entity, PrimaryGeneratedColumn, Column } from 'typeorm';
-import { IsString, IsNumber, IsBoolean, IsDate, IsOptional } from 'class-validator';
+import { IsString, IsNumber, IsBoolean, IsOptional } from 'class-validator';
 
 @Entity({ name: 'products' })
 export class Product {
-
   @PrimaryGeneratedColumn()
   id: number;
 
@@ -22,5 +21,4 @@ export class Product {
   @IsOptional()
   @IsBoolean()
   is_available: boolean | null = true;
-
-}
+}