# Notes Sync API (cp_006)

## Objective
Build a notes sync API with optimistic concurrency, conflict detection, and change feed endpoints.

## Language & Library Constraints
- Primary language: python
- Available libraries: fastapi, pydantic, sqlalchemy, requests
- Use library APIs explicitly where suitable in execution contracts.

## Acceptance
- Deterministic taskitems with strict execution contracts.
- Include selected library and preferred APIs when applicable.