Squid 1.9.0 Server-side idempotency + Tentacle disk self-heal (SOTA-audit P1 complete, P2 disk-self-heal): - Pause (resumable) on transient infra failure instead of failing (#434) - Scope the in-flight reattach store to the dispatch unit, not the machine (#433) - Wire disk-pressure self-heal into the Tentacle host lifecycle, hardened (#435) - End-to-end ProcessAsync transient-pause test (#436)