Group of 2 Under the hood
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Background and notification sends now carry turn attribution so the system knows which turn they belong to.
Internal message-send call sites (task notifications, hook stop messages, WebSocket housekeeping messages) now pass a turnAttribution value of "inherit" or "none", and a new helper resolves turnAttributionKey for task-notification mode. The task-notification enqueue path also gained a second options argument carrying turnAttribution, with the ultrareview-failed notification explicitly passing { turnAttribution: "inherit" }. This is internal bookkeeping to track which conversational turn a background message belongs to.
Names in the bundleturnAttribution