Add Apple Silicon acceleration (MPS/explicit CPU) for embedding — up to 256x faster (addresses #1068)#1133

yangqingggui-a11y wants to merge 1 commit intoMemPalace:developMemPalace/mempalace:developfrom

yangqingggui-a11y:feat/apple-silicon-embeddingyangqingggui-a11y/mempalace:feat/apple-silicon-embeddingCopy head branch name to clipboard