fix: Add Unicode sanitization for cloud embedders#1048

endxxxx merged 3 commits intoMemTensor:dev-20260302-v2.0.8MemTensor/MemOS:dev-20260302-v2.0.8from

anatolykoptev:fix/unicode-sanitization-embeddersanatolykoptev/MemOSina:fix/unicode-sanitization-embeddersCopy head branch name to clipboard