feat: 添加workflow字段到n8n_templates表

- 在N8nTemplateEntity中添加workflow字段
- 创建migration添加workflow列到数据库
- 更新package.json的migration脚本配置

package.json

@@ -22,7 +22,7 @@
     "typecheck": "tsc --noEmit",
     "typeorm": "typeorm-ts-node-commonjs",
     "migration:generate": "npm run typeorm -- migration:generate",
-    "migration:run": "npm run typeorm -- migration:run",
+    "migration:run": "npm run typeorm -- migration:run -d data-source.ts",
     "migration:revert": "npm run typeorm -- migration:revert",
     "schema:sync": "npm run typeorm -- schema:sync",
     "schema:drop": "npm run typeorm -- schema:drop",

src/entities/n8n-template.entity.ts

@@ -32,6 +32,9 @@ export class N8nTemplateEntity {
   @PrimaryGeneratedColumn('increment', { type: 'bigint' })
   id: number;
 
+  @Column({ length: 200, comment: '对应n8n 的workflow', default: `` })
+  workflow: string;
+
   /** 模板代码 - 模板的唯一标识码，用于API调用和模板引用 */
   @Column({ unique: true, length: 100, comment: '模板唯一标识码' })
   code: string;

src/migrations/1756990000000-AddWorkflowToN8nTemplates.ts

@@ -0,0 +1,29 @@
+import { MigrationInterface, QueryRunner, TableColumn } from 'typeorm';
+
+export class AddWorkflowToN8nTemplates1756990000000
+  implements MigrationInterface
+{
+  name = 'AddWorkflowToN8nTemplates1756990000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.addColumn(
+      'n8n_templates',
+      new TableColumn({
+        name: 'workflow',
+        type: 'varchar',
+        length: '200',
+        default: "''",
+        isNullable: false,
+        comment: '对应n8n 的workflow',
+      }),
+    );
+
+    console.log('✅ Added workflow column to n8n_templates table');
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.dropColumn('n8n_templates', 'workflow');
+    
+    console.log('✅ Dropped workflow column from n8n_templates table');
+  }
+}