fix: gracefully skip unknown fields in SSE optimistic record updates

https://sonarly.com/issue/18992?type=bug

When an SSE event delivers a record update containing custom fields that are not yet present in the frontend's cached object metadata, `computeOptimisticRecordFromInput` throws a fatal error that breaks SSE event processing for the session.

Fix: Replaced `throw new Error(...)` with `console.warn(...)` in `computeOptimisticRecordFromInput` when unknown fields are detected in the record input.

**Why this is safe:** The function's main for-loop (line 80) iterates only over `objectMetadataItem.fields`, not over `recordInput` keys. Unknown fields in `recordInput` are naturally skipped by the loop and never processed. The throw was a defensive assertion added in commit `29745c6756` for mutation-triggered optimistic updates where the frontend controls the input. When SSE real-time events were added, this function started receiving server-controlled input that may include custom fields not yet in the frontend's stale metadata cache.

**What this fixes:** When an SSE event delivers a record containing custom fields (e.g., `mail`, `pitched`, `media`, `number`, `businessCategory` on the `company` object) and the frontend's metadata cache hasn't refreshed yet, the function now logs a warning and continues processing known fields instead of crashing the entire SSE event stream handler.

Updated the test from asserting a throw to asserting a `console.warn` call and verifying that known fields are still correctly processed while unknown fields are skipped.

packages/twenty-front/src/modules/object-record/utils/__tests__/computeOptimisticRecordFromInput.test.ts

@@ -252,26 +252,36 @@ describe('computeOptimisticRecordFromInput', () => {
     });
   });
 
-  it('should throw an error if recordInput contains fields unrelated to the current objectMetadata', () => {
+  it('should warn and skip unknown fields if recordInput contains fields unrelated to the current objectMetadata', () => {
     const cache = new InMemoryCache();
     const personObjectMetadataItem = getMockObjectMetadataItemOrThrow('person');
+    const consoleWarnSpy = jest
+      .spyOn(console, 'warn')
+      .mockImplementation(() => {});
 
-    expect(() =>
-      computeOptimisticRecordFromInput({
-        currentWorkspaceMember,
-        objectMetadataItems: getTestEnrichedObjectMetadataItemsMock(),
-        objectMetadataItem: personObjectMetadataItem,
-        recordInput: {
-          unknwon: 'unknown',
-          foo: 'foo',
-          bar: 'bar',
-          city: 'Paris',
-        },
-        cache,
-        objectPermissionsByObjectMetadataId: {},
-      }),
-    ).toThrowErrorMatchingInlineSnapshot(
-      `"Should never occur, encountered unknown fields unknwon, foo, bar in objectMetadataItem person"`,
+    const result = computeOptimisticRecordFromInput({
+      currentWorkspaceMember,
+      objectMetadataItems: getTestEnrichedObjectMetadataItemsMock(),
+      objectMetadataItem: personObjectMetadataItem,
+      recordInput: {
+        unknwon: 'unknown',
+        foo: 'foo',
+        bar: 'bar',
+        city: 'Paris',
+      },
+      cache,
+      objectPermissionsByObjectMetadataId: {},
+    });
+
+    expect(consoleWarnSpy).toHaveBeenCalledWith(
+      expect.stringContaining(
+        'encountered unknown fields unknwon, foo, bar in objectMetadataItem person',
+      ),
     );
+    expect(result).toEqual({
+      city: 'Paris',
+    });
+
+    consoleWarnSpy.mockRestore();
   });
 });

packages/twenty-front/src/modules/object-record/utils/computeOptimisticRecordFromInput.ts

@@ -71,8 +71,8 @@ export const computeOptimisticRecordFromInput = ({
     },
   );
   if (unknownRecordInputFields.length > 0) {
-    throw new Error(
-      `Should never occur, encountered unknown fields ${unknownRecordInputFields.join(', ')} in objectMetadataItem ${objectMetadataItem.nameSingular}`,
+    console.warn(
+      `computeOptimisticRecordFromInput: encountered unknown fields ${unknownRecordInputFields.join(', ')} in objectMetadataItem ${objectMetadataItem.nameSingular}. Skipping unknown fields.`,
     );
   }