Continuous "latest" builds track lotus HEAD, so only the newest submodule bump needs to build. Cancel a superseded in-flight release: rapid lotus pushes would otherwise queue several ~30-min Tauri builds back-to-back, and build-linux runs on ubuntu-latest — the same runner pool as cinny web CI — so the queue also starves web CI/deploys. update-manifest only publishes release.json on full success, so a cancelled run leaves the last good manifest untouched. Reviewed by 2 agents (SHIP). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>