feat: Add Workflow duplicate step (#15622)

## Description

- This PR address issue
https://github.com/twentyhq/core-team-issues/issues/1800
- Added workflow duplicate option in workflow sidepanel
- Introduced DuplicateWorkflow.ts mutuation
- Updated graphql generated metadata with new duplicate type




## Visual Appearanc

<img width="1792" height="1031" alt="Screenshot 2025-11-07 at 4 46
22 PM"
src="https://github.com/user-attachments/assets/d75f99df-ae18-4b41-a5f4-21c50010cdbc"
/>


https://github.com/user-attachments/assets/3dbf73cf-f4dd-484c-94a3-29577cfbac25

---------

Co-authored-by: Devessier <baptiste@devessier.fr>

packages/twenty-server/src/engine/core-modules/workflow/dtos/duplicate-workflow-input.dto.ts

@@ -0,0 +1,18 @@
+import { Field, InputType } from '@nestjs/graphql';
+
+import { UUIDScalarType } from 'src/engine/api/graphql/workspace-schema-builder/graphql-types/scalars';
+
+@InputType()
+export class DuplicateWorkflowInput {
+  @Field(() => UUIDScalarType, {
+    description: 'Workflow ID to duplicate',
+    nullable: false,
+  })
+  workflowIdToDuplicate: string;
+
+  @Field(() => UUIDScalarType, {
+    description: 'Workflow version ID to copy',
+    nullable: false,
+  })
+  workflowVersionIdToCopy: string;
+}

packages/twenty-server/src/engine/core-modules/workflow/resolvers/workflow-version.resolver.ts

@@ -14,6 +14,7 @@ import { WorkspaceAuthGuard } from 'src/engine/guards/workspace-auth.guard';
 import { PermissionFlagType } from 'src/engine/metadata-modules/permissions/constants/permission-flag-type.constants';
 import { PermissionsGraphqlApiExceptionFilter } from 'src/engine/metadata-modules/permissions/utils/permissions-graphql-api-exception.filter';
 import { WorkflowVersionWorkspaceService } from 'src/modules/workflow/workflow-builder/workflow-version/workflow-version.workspace-service';
+import { DuplicateWorkflowInput } from 'src/engine/core-modules/workflow/dtos/duplicate-workflow-input.dto';
 
 @Resolver()
 @UsePipes(ResolverValidationPipe)
@@ -47,6 +48,19 @@ export class WorkflowVersionResolver {
     });
   }
 
+  @Mutation(() => WorkflowVersionDTO)
+  async duplicateWorkflow(
+    @AuthWorkspace() { id: workspaceId }: WorkspaceEntity,
+    @Args('input')
+    { workflowIdToDuplicate, workflowVersionIdToCopy }: DuplicateWorkflowInput,
+  ): Promise<WorkflowVersionDTO> {
+    return this.workflowVersionWorkspaceService.duplicateWorkflow({
+      workspaceId,
+      workflowIdToDuplicate,
+      workflowVersionIdToCopy,
+    });
+  }
+
   @Mutation(() => Boolean)
   async updateWorkflowVersionPositions(
     @AuthWorkspace() { id: workspaceId }: WorkspaceEntity,