* fix(persistence): repo-row store writes take the row, not the id; ratchet the rest (R4-2a)
* fix(persistence): host-filter the runtime nested import; widen the id-only write ratchet (review)
* fix(runtime): nested import keeps matching runtime-stamped native rows on a paired host
* fix(persistence): class-scope the ratchet param exemptions; update a new main test to the target shape
* fix(ipc): fence a project-group move by the resolved twin host, so an SSH twin is not WSL-fenced
* test(ci): pin the id-only store write ratchet step to the static phase