[Backend] Reduce resultMap sync frequency

[senwang86]

Summary

• Reduce yjs sync via resultMap.set() method
• Fix #483; very interesting solution from ChatGPT, while I didn't find its sources
  • Yjs is a CRDT framework that syncs JavaScript objects across multiple peers. However, it does not natively support all JavaScript types. The Date object is one of the types that Yjs does not natively support. When you try to sync a Date object, Yjs will only sync the reference to the object, not the actual date value. This is why you're seeing issues with syncing the "Date" field.

Test

[lihebi]

Thanks!