fix(driver-memory,driver-mongodb): refuse a non-boolean $exists comparand with INVALID_FILTER / 400, as $null's is refused (#20897) - #20979

fix(driver-memory,driver-mongodb): refuse a non-boolean $exists comparand with INVALID_FILTER / 400, as $null's is refused (#20897)#20979

objectstack-fleet[bot] merged 7 commits into

mainobjectstack-ai/objectstack:mainfrom

claude/issue-20897-exists-non-boolean-refusedobjectstack-ai/objectstack:claude/issue-20897-exists-non-boolean-refusedCopy head branch name to clipboard