Migrate update step changes to diff (#14663)

This PR should fix optimistic rendering issues on step updates:
- compute a diff for trigger and steps on mutations
- build an util that applies that diff (built a more robust version from
https://github.com/AsyncBanana/micropatch)
- apply diff in cache

packages/twenty-server/src/engine/core-modules/workflow/dtos/create-workflow-version-step-input.dto.ts

@@ -45,4 +45,10 @@ export class CreateWorkflowVersionStepInput {
     nullable: true,
   })
   position?: WorkflowStepPositionInput;
+
+  @Field(() => String, {
+    description: 'Step ID',
+    nullable: true,
+  })
+  id?: string;
 }

packages/twenty-server/src/engine/core-modules/workflow/dtos/workflow-version-step-changes.dto.ts

@@ -1,20 +1,13 @@
 import { Field, ObjectType } from '@nestjs/graphql';
 
-import graphqlTypeJson from 'graphql-type-json';
-
-import { WorkflowActionDTO } from 'src/engine/core-modules/workflow/dtos/workflow-step.dto';
+import GraphQLJSON from 'graphql-type-json';
+import { Difference } from 'microdiff';
 
 @ObjectType('WorkflowVersionStepChanges')
 export class WorkflowVersionStepChangesDTO {
-  @Field(() => [String], { nullable: true })
-  triggerNextStepIds?: string[];
+  @Field(() => GraphQLJSON, { nullable: true })
+  triggerDiff?: Difference[];
 
-  @Field(() => graphqlTypeJson, { nullable: true })
-  stepsNextStepIds?: Record<string, string[] | undefined>;
-
-  @Field(() => WorkflowActionDTO, { nullable: true })
-  createdStep?: WorkflowActionDTO;
-
-  @Field(() => [String], { nullable: true })
-  deletedStepIds?: string[];
+  @Field(() => GraphQLJSON, { nullable: true })
+  stepsDiff?: Difference[];
 }

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

@@ -11,7 +11,7 @@ import { DuplicateWorkflowVersionStepInput } from 'src/engine/core-modules/workf
 import { SubmitFormStepInput } from 'src/engine/core-modules/workflow/dtos/submit-form-step-input.dto';
 import { UpdateWorkflowRunStepInput } from 'src/engine/core-modules/workflow/dtos/update-workflow-run-step-input.dto';
 import { UpdateWorkflowVersionStepInput } from 'src/engine/core-modules/workflow/dtos/update-workflow-version-step-input.dto';
-import { WorkflowActionDTO } from 'src/engine/core-modules/workflow/dtos/workflow-step.dto';
+import { WorkflowActionDTO } from 'src/engine/core-modules/workflow/dtos/workflow-action.dto';
 import { WorkflowVersionStepChangesDTO } from 'src/engine/core-modules/workflow/dtos/workflow-version-step-changes.dto';
 import { WorkflowVersionStepGraphqlApiExceptionFilter } from 'src/engine/core-modules/workflow/filters/workflow-version-step-graphql-api-exception.filter';
 import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';