[Feature]: Integrate RaBitQ Quantization into HNSW Index

[feihongxu0824]

Problem / Motivation

HNSW delivers strong recall and low latency but suffers from high memory consumption, limiting its deployment on resource-constrained devices. RaBitQ is an efficient quantization method that significantly compresses vectors while preserving retrieval accuracy.

Proposed Solution

Alternatives Considered

No response

Affected Area

No response