## Summary
- Replaced the `deep-equal` npm package with the existing
`fastDeepEqual` from `twenty-shared/utils` across 5 files in the server
and shared packages
- `deep-equal` was causing severe CPU overhead in the record update hot
path (`executeMany` → `formatTwentyOrmEventToDatabaseBatchEvent` →
`objectRecordChangedValues` → `deepEqual`, called **per field per
record**)
- `fastDeepEqual` is ~100x faster for plain JSON database records since
it skips unnecessary prototype chain inspection and edge-case handling
- Removed the now-unnecessary `LARGE_JSON_FIELDS` branching in
`objectRecordChangedValues` since all fields now use the fast
implementation
