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* 🐛 Stop thumbnail subscribers re-rendering on every store change A thumbnail loaded from the server keeps a media id as :uri, and workspace-thumbnail-by-id resolves it into a new map on each read. The ref compared values with identical?, so every root frame, every component in the assets panel and the interactions layer re-rendered on every store change, mouse moves included. Compare by value instead. This does not loop by itself, but it adds work to every commit and brings other update loops closer to React's limit. Relates to #12580 AI-assisted-by: claude-opus-5-5 * ✨ Report update loops throttled by the update scheduler When the scheduler throttles an update loop, it only logs a console warning, so a loop that no longer crashes leaves no trace. Send an error report too, with the events in flight and the last events, at most once per report window. Relates to #12580 AI-assisted-by: claude-opus-5-5 * 🐛 Report throttled update loops as unhandled exceptions The throttled update loop report used the handled-exception event, which only lands in the audit log: error reports and alerts read unhandled-exception and exception-page. A throttled loop is an application defect (its cause has :type :internal), and the point of the report is to find those loops, so it is now an unhandled exception. AI-assisted-by: claude-opus-5-5