dispatch-2 client-reliability-5: route reproduced orphan mirror guard; record trial intervention

fleet/LOG.md

@@ -67,3 +67,6 @@
 
 - Owner parallel-trial approval relayed by interpreter and recorded verbatim in PROGRAM. Keep item5 client-reliability; add storage-cors-1 offline existing-origin preservation reproduction and playback-qa-1 independent local fallback qualification. Preflight public open PR count0. Inspection confirms helper constructs requested-origin-only PutBucketCors; QA gap documented in Stage3 and prior item4 report. Neither task assumes a new product defect.
 - Three worker target, disjoint branches/worktrees/files. QA browser first; focused offline work overlaps; full suites/product gates coordinated one at a time. Measure pickup latency, real outputs, gate/browser/tool stalls and durable queue outcomes. No credentialed cloud/live peers/production activity. Launch pending roster landing.
+
+- Trial intervention: original roster47953970 gate rejected13:28:15 at118th file,1047831-byte log with8877 binary0xff markers. Inherited NODE_TEST_CONTEXT=child-v8 emits Node test protocol; spawnSync default capture cap reproduced as ENOBUFS/SIGTERM. Clean diagnostic reached101 file starts with no failure markers then was intentionally stopped(exit143) to avoid overlapping full gates. Resubmitted unchanged roster13:30:35 with NODE_TEST_CONTEXT unset; log now plain text/no binary markers, normal gate unchanged. Original rejection evidence retained in trial notes. MCP deadline/read fallback and worker wake/claim delay also observed; item5 pickup confirmed13:27:49.
+- Item5 independently reproduced disposed active error starting1 obsolete mirror HEAD(expected0); shared-owner control exit0/healthy/resources0. Route same worker to controller-only mirror-continuation guard and focused regression; no active abort or policy changes. Waiting for first roster gate before new worker launch; no launch claimed yet.

fleet/RULE-CHANGES.md

@@ -9,6 +9,9 @@ a landing rule changes.
 
 ## 2026-10-20
 
+- Item5 narrow fix routed after worker+dispatch reproduction: prevent fresh mirror HEAD after disposed last-owner active-media error; controller+focused URL lifecycle tests only. Preserve bounded active/cache/shared/rejoin/timeout semantics, no active abort. Parallel trial CLI/agent/lander launches clear inherited NODE_TEST_CONTEXT transport; exact gate/assertions unchanged. Original roster gate hit binary capture cap, not identified product assertion. No kit patch.
+
+
 - Owner authorizes bounded parallel trial via interpreter: dispatch plus existing client-reliability and two new areas storage-cors/playback-qa. Separate worktrees/disjoint write ownership; no competing app/grid/URL writers. QA initially owns browser; one expensive full gate at a time coordinated through dispatch. Each worker sends read/next-action and timed contention/evidence events. No new external authority or scheduler changes.