Add createdBy field on custom object creation (#6529)

In this PR, I'm:
- adding createdBy field (type ACTOR) on custom objects when created
- moving `name` and `position` default column to the set of columns
automatically creation on object creation
- fixing a bug on mutations (update / create), if the targetted object
has a 'data' custom field, it was conflicting with the payload ==> I
feel we need to refactor this part of the code but we can keep this for
a bit later as we plan to move out of pg_graphql

<img width="1198" alt="image"
src="https://github.com/user-attachments/assets/891c4a97-bab1-415c-8551-dabd5996a794">

packages/twenty-server/src/engine/workspace-manager/workspace-migration-runner/utils/custom-table-default-column.util.ts

@@ -1,6 +1,10 @@
 import { TableColumnOptions } from 'typeorm';
 
-export const customTableDefaultColumns: TableColumnOptions[] = [
+import { FieldActorSource } from 'src/engine/metadata-modules/field-metadata/composite-types/actor.composite-type';
+
+export const customTableDefaultColumns = (
+  tableName: string,
+): TableColumnOptions[] => [
   {
     name: 'id',
     type: 'uuid',
@@ -22,4 +26,30 @@ export const customTableDefaultColumns: TableColumnOptions[] = [
     type: 'timestamptz',
     isNullable: true,
   },
+  {
+    name: 'position',
+    type: 'float',
+    isNullable: true,
+  },
+  {
+    name: 'name',
+    type: 'text',
+    isNullable: false,
+    default: "'Untitled'",
+  },
+  {
+    name: 'createdBySource',
+    type: 'enum',
+    enumName: `${tableName}_createdBySource_enum`,
+    enum: Object.values(FieldActorSource),
+    isNullable: false,
+    default: `'${FieldActorSource.MANUAL}'`,
+  },
+  { name: 'createdByWorkspaceMemberId', type: 'uuid', isNullable: true },
+  {
+    name: 'createdByName',
+    type: 'text',
+    isNullable: false,
+    default: "''",
+  },
 ];

packages/twenty-server/src/engine/workspace-manager/workspace-migration-runner/workspace-migration-runner.service.ts

@@ -227,7 +227,7 @@ export class WorkspaceMigrationRunnerService {
       new Table({
         name: tableName,
         schema: schemaName,
-        columns: customTableDefaultColumns,
+        columns: customTableDefaultColumns(tableName),
       }),
       true,
     );