**Overview:** Complete high-priority safety improvements and fill MemDB documentation gaps to make zerokv ready for broader adoption. ### Tasks - [ ] Add MemDB usage example to USAGE.md (demonstrate use cases like testing, caching, dev) - [ ] Add nil iterator checks in all examples across documentation - [ ] Update ERROR_HANDLING.md to document unsupported operations per backend - [ ] Add backend capability matrix in API.md
Overview: Complete high-priority safety improvements and fill MemDB documentation gaps to make zerokv ready for broader adoption.
Tasks