* Allow multivec search on legacy REST API
* show that it works for gRPC as well
* better error message
* update error assertion
* show validation on REST as well
* remove unecessary test
* fix conversion - dim is not vec count
* fmt
* Use TypedMultiDenseVectorRef everywhere (#4224)
* Use TypedMultiDenseVectorRef everywhere
* remove obsolete test
* fix codespell
* fix build
* test single dense vector expansion on upsert
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Co-authored-by: Ivan Pleshkov <pleshkov.ivan@gmail.com>
* REST API multivector for write and retrieve
* add test showing search is not supported
* use helper
* debug asserts
* better naming
* iterator style
* better naming
* add validation test for checking all inner vectors have the same size
