Refactor: Unify command menu item execution (#18908)

- Makes engineComponentKey non-nullable on CommandMenuItem. Adds two new
engine component keys: TRIGGER_WORKFLOW_VERSION and
FRONT_COMPONENT_RENDERER to cover the former standalone cases.
- Unifies the previously separated engine, front component and workflow
runners into a single `CommandRunner` component with a unified
`useMountCommand` hook that handles all command types.

packages/twenty-server/src/modules/workflow/workflow-trigger/workspace-services/workflow-trigger.workspace-service.ts

@@ -6,6 +6,7 @@ import { type ActorMetadata, FeatureFlagKey } from 'twenty-shared/types';
 import { FeatureFlagService } from 'src/engine/core-modules/feature-flag/services/feature-flag.service';
 import { CommandMenuItemService } from 'src/engine/metadata-modules/command-menu-item/command-menu-item.service';
 import { CommandMenuItemAvailabilityType } from 'src/engine/metadata-modules/command-menu-item/enums/command-menu-item-availability-type.enum';
+import { EngineComponentKey } from 'src/engine/metadata-modules/command-menu-item/enums/engine-component-key.enum';
 import { type WorkspaceEntityManager } from 'src/engine/twenty-orm/entity-manager/workspace-entity-manager';
 import { GlobalWorkspaceOrmManager } from 'src/engine/twenty-orm/global-workspace-datasource/global-workspace-orm.manager';
 import { type WorkspaceRepository } from 'src/engine/twenty-orm/repository/workspace.repository';
@@ -432,6 +433,7 @@ export class WorkflowTriggerWorkspaceService {
       await this.commandMenuItemService.create(
         {
           workflowVersionId: workflowVersion.id,
+          engineComponentKey: EngineComponentKey.TRIGGER_WORKFLOW_VERSION,
           label,
           shortLabel: label,
           icon: trigger.settings.icon,