* feat: add openGauss DataVec as vector database backend Add openGauss with DataVec extension as a new vector storage option alongside PGVector and Milvus. Includes vector DB controller, Docker Compose deployment configs (CN/Global), deploy generation scripts, and test templates. * test: add opengauss vectorDB integration entry * test: adjust vector env template for opengauss run * fix: ts --------- Co-authored-by: archer <545436317@qq.com>
