Fix authoredAttachments schema error by restoring deprecated relation metadata

The author/authoredAttachments relation was removed from metadata computation
but still exists in the DB metadata tables, causing the frontend to query a
field that doesn't exist in the GraphQL schema during login.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: walmat

packages/twenty-server/src/engine/workspace-manager/twenty-standard-application/utils/field-metadata/compute-attachment-standard-flat-field-metadata.util.ts

@@ -431,4 +431,31 @@ export const buildAttachmentStandardFlatFieldMetadatas = ({
     twentyStandardApplicationId,
     now,
   }),
+  // @deprecated – kept so DB metadata stays consistent until author is fully removed
+  author: createStandardRelationFieldFlatMetadata({
+    objectName,
+    workspaceId,
+    context: {
+      type: FieldMetadataType.RELATION,
+      morphId: null,
+      fieldName: 'author',
+      label: 'Author',
+      description: 'Attachment author',
+      icon: 'IconUserCircle',
+      isSystem: true,
+      isNullable: true,
+      isUIReadOnly: true,
+      targetObjectName: 'workspaceMember',
+      targetFieldName: 'authoredAttachments',
+      settings: {
+        relationType: RelationType.MANY_TO_ONE,
+        onDelete: RelationOnDeleteAction.SET_NULL,
+        joinColumnName: 'authorId',
+      },
+    },
+    standardObjectMetadataRelatedEntityIds,
+    dependencyFlatEntityMaps,
+    twentyStandardApplicationId,
+    now,
+  }),
 });

packages/twenty-server/src/engine/workspace-manager/twenty-standard-application/utils/field-metadata/compute-workspace-member-standard-flat-field-metadata.util.ts

@@ -482,6 +482,31 @@ export const buildWorkspaceMemberStandardFlatFieldMetadatas = ({
     twentyStandardApplicationId,
     now,
   }),
+  // @deprecated – kept so DB metadata stays consistent until author is fully removed
+  authoredAttachments: createStandardRelationFieldFlatMetadata({
+    objectName,
+    workspaceId,
+    context: {
+      type: FieldMetadataType.RELATION,
+      morphId: null,
+      fieldName: 'authoredAttachments',
+      label: 'Authored attachments',
+      description: 'Attachments created by the workspace member',
+      icon: 'IconFileDescription',
+      isSystem: true,
+      isNullable: false,
+      isUIReadOnly: true,
+      targetObjectName: 'attachment',
+      targetFieldName: 'author',
+      settings: {
+        relationType: RelationType.ONE_TO_MANY,
+      },
+    },
+    standardObjectMetadataRelatedEntityIds,
+    dependencyFlatEntityMaps,
+    twentyStandardApplicationId,
+    now,
+  }),
   connectedAccounts: createStandardRelationFieldFlatMetadata({
     objectName,
     workspaceId,

packages/twenty-shared/src/metadata/standard-object.constant.ts

@@ -53,6 +53,10 @@ export const STANDARD_OBJECTS = {
       targetWorkflow: {
         universalIdentifier: '20202020-f1e8-4c9d-8a7b-3f5e1d2c9a8b',
       },
+      //deprecated
+      author: {
+        universalIdentifier: '20202020-d036-493c-b3b3-e53b7fc1f834',
+      },
     },
     morphIds: {
       targetMorphId: { morphId: '20202020-f634-435d-ab8d-e1168b375c69' },
@@ -2322,6 +2326,10 @@ export const STANDARD_OBJECTS = {
       accountOwnerForCompanies: {
         universalIdentifier: '20202020-dc29-4bd4-a3c1-29eafa324bee',
       },
+      //deprecated
+      authoredAttachments: {
+        universalIdentifier: '20202020-9e80-4eec-a3e2-3a0d42f3c3f5',
+      },
       connectedAccounts: {
         universalIdentifier: '20202020-e322-4bde-a525-727079b4a100',
       },