Post-merge dispatch failure after #13109..#13027: unattended merging demoted #13134

The post-merge check found a dispatch failure on main. It is attributed to the range of 11 commits since main's last green full run at 8f87fee5bcffeff1fc44bd51b23792981060aa63, not to one pull request. The unattended merge path stays at
rung off while this record holds. It clears itself once a full run passes on main at a later commit; the fix issues fix main. A new sighting of the same failure reopens it.

• Commits in the range, oldest first:
  • test(guardrails): cover the backslash-newline form of !(x) in the reader's extglob refusal rows #13109, merge commit 33afb115c9e3be0d860cafb9f77ada4a86f68c4b, by melodic-automation-lanes[bot]
  • test(code-metrics): add held-out trigger probes for the audit leaves #13113, merge commit 74bee5d9bec70ec8cb805874b808b22233a8fbb4, by kyle-sexton
  • test(planning): grade the stress-test suite's sound-part check with an LLM judge #13115, merge commit 7425e6f170c521be9355d3d6116345a034ca184f, by melodic-automation-lanes[bot]
  • fix(pr-verify): keep no-change remarks out of a fail's notes #13112, merge commit 95af3ee53bd0c9950b299c5c4bb83aba4d729f62, by kyle-sexton
  • test(powershell-format): convert setup evals.json to case.yaml suites #13116, merge commit 98c3a04f37c61f297ceb7487cbbd753b0275e9bf, by kyle-sexton
  • fix(discovery): require verbatim claim quotes in research sidecar prose #13118, merge commit b026b85af8ba63e4abc9949661aefe8fdc2e866d, by melodic-automation-lanes[bot]
  • chore(release): release 19 plugins #13114, merge commit 270a996436779cc3edb23e583cc999d83f28b161, by melodic-plugin-release[bot]
  • fix(work-items): bound the linear seed children reads by the list ceiling #13119, merge commit 11254a8ddeb76cdd82826dbff9e9cf093a192562, by melodic-automation-lanes[bot]
  • feat(view-runtime): one canonical chrome with theme toggle and comments, and the redraw binding #13048, merge commit cd51d31f5629a3843bc1cba095829211619c9f3a, by melodic-automation-lanes[bot]
  • fix(pr-pipeline): retry a failed intake hand-off in the demotion alert #13120, merge commit d31b0c6333c6c6aefdeff276ce4163b7cdd44e45, by kyle-sexton
  • refactor(architecture): resolve the view medium through the shared resolver #13027, merge commit 4c0b4eb3855c8d32c978dc7baabe17248d17f900, by kyle-sexton
• Main at the failing run: 4c0b4eb3855c8d32c978dc7baabe17248d17f900
• Failing run: https://github.com/melodic-software/claude-code-plugins/actions/runs/41790328465/attempts/2
• Newly failing: test-bash (3)