Fix Tasks/Notes created with null position (#9068)

Fixes https://github.com/twentyhq/twenty/issues/8810
Fixes https://github.com/twentyhq/twenty/issues/5268
Fixes https://github.com/twentyhq/twenty/issues/8971

- Fixing Task/Note creation not sending position during creation
- Adding a command to backfill position being null, using existing
backfill command.
- Removed unused backfill job.
- Updated workspace entities to set position non-nullable and set a
default value to make it non-required on the API
- Updated position factory to set a default position for all objects
having a POSITION field instead of only company/people
- Moved the try/catch in each resolver factory calling
GraphqlQueryRunnerException handler, makes more sense to call it in the
actual graphql-query-runner and removing some duplicate codes
- Adding validations for input in QueryRunnerArgs factories
- Allow sync-metadata to override and sync defaultValues for certain
field types (that can't be updated by users)
- Removing health-check from sync-metadata command during force mode to
improve performances

packages/twenty-server/src/modules/workflow/common/standard-objects/workflow-run.workspace-entity.ts

@@ -155,10 +155,10 @@ export class WorkflowRunWorkspaceEntity extends BaseWorkspaceEntity {
     label: 'Position',
     description: 'Workflow run position',
     icon: 'IconHierarchy2',
+    defaultValue: 0,
   })
   @WorkspaceIsSystem()
-  @WorkspaceIsNullable()
-  position: number | null;
+  position: number;
 
   // Relations
   @WorkspaceRelation({

packages/twenty-server/src/modules/workflow/common/standard-objects/workflow-version.workspace-entity.ts

@@ -117,10 +117,10 @@ export class WorkflowVersionWorkspaceEntity extends BaseWorkspaceEntity {
     label: 'Position',
     description: 'Workflow version position',
     icon: 'IconHierarchy2',
+    defaultValue: 0,
   })
   @WorkspaceIsSystem()
-  @WorkspaceIsNullable()
-  position: number | null;
+  position: number;
 
   // Relations
   @WorkspaceRelation({

packages/twenty-server/src/modules/workflow/common/standard-objects/workflow.workspace-entity.ts

@@ -1,6 +1,10 @@
 import { Relation } from 'src/engine/workspace-manager/workspace-sync-metadata/interfaces/relation.interface';
 
 import { FeatureFlagKey } from 'src/engine/core-modules/feature-flag/enums/feature-flag-key.enum';
+import {
+  ActorMetadata,
+  FieldActorSource,
+} from 'src/engine/metadata-modules/field-metadata/composite-types/actor.composite-type';
 import { FieldMetadataType } from 'src/engine/metadata-modules/field-metadata/field-metadata.entity';
 import {
   RelationMetadataType,
@@ -21,10 +25,6 @@ import { TimelineActivityWorkspaceEntity } from 'src/modules/timeline/standard-o
 import { WorkflowEventListenerWorkspaceEntity } from 'src/modules/workflow/common/standard-objects/workflow-event-listener.workspace-entity';
 import { WorkflowRunWorkspaceEntity } from 'src/modules/workflow/common/standard-objects/workflow-run.workspace-entity';
 import { WorkflowVersionWorkspaceEntity } from 'src/modules/workflow/common/standard-objects/workflow-version.workspace-entity';
-import {
-  ActorMetadata,
-  FieldActorSource,
-} from 'src/engine/metadata-modules/field-metadata/composite-types/actor.composite-type';
 
 export enum WorkflowStatus {
   DRAFT = 'DRAFT',
@@ -103,10 +103,10 @@ export class WorkflowWorkspaceEntity extends BaseWorkspaceEntity {
     label: 'Position',
     description: 'Workflow record position',
     icon: 'IconHierarchy2',
+    defaultValue: 0,
   })
   @WorkspaceIsSystem()
-  @WorkspaceIsNullable()
-  position: number | null;
+  position: number;
 
   // Relations
   @WorkspaceRelation({