Pin the live cluster to the rc7 amd64 image
(@sha256:171505745b801dcf231b531de6167dbc309a7182957811cbc2228f0a302572b1,
6-layer manifest, imagetools-verified) carrying the write-burst false-partition
fix (tidal-net record_timeout). Deployed via `kubectl set image`; rolling update
completed 3/3 Ready. Reseeds across the rollout were the safe snapshot-install
fallback (rejoining behind WAL retention), all converged lag=0, no loop, no loss.
0847c3d36f