## Summary
- `transformRichTextV2Value` was calling `await
import('@blocknote/server-util')` and `ServerBlockNoteEditor.create()`
on **every single invocation**, adding ~90ms of overhead each time
(visible as the highest avg-duration frame in profiling at 93.49ms).
- Cache the `ServerBlockNoteEditor` instance at module level so the
dynamic import + creation only happens once for the lifetime of the
process.
- Also removes debug timing instrumentation (`performance.now()`,
`calculateInputSize`, `Logger`) that is no longer needed.
## Test plan
- [ ] Verify rich text fields (blocknote/markdown) still round-trip
correctly on create and update
- [ ] Confirm reduced CPU time for `transformRichTextV2Value` in
profiling
Made with [Cursor](https://cursor.com)
Co-authored-by: Cursor <cursoragent@cursor.com>
Félix Malfait
b0cb29c11c