The task-list done toggle (both islands) and RemoveFromQueue wrote TaskEntity.Status
directly via EF, bypassing TaskStateService: no TaskUpdated broadcast, no guard against
a concurrent picker claim (lost update), and no status-based filter. Added guarded
MarkDoneAsync/UnmarkDoneAsync/DequeueToIdleAsync transitions plus matching hub methods
(SetTaskDone/UnsetTaskDone/DequeueTask) and IWorkerClient wrappers; the three UI call
sites now route through the hub with optimistic-then-revert row updates and
ErrorReported on failure. RemoveFromQueueAsync dequeues each queued child individually
through the same guarded path instead of cascading via a raw EF update.
Also closes two hub guard gaps: UpdateListConfig's delete branch now preserves a list's
SerializeOnFileOverlap flag instead of dropping it, and SubmitTaskForReview's Idle/Failed
status gate now runs before either mutation branch so a Done/Cancelled task can't get
committed or stamped and then rejected.
Stop/Enqueue/Dequeue/Reset&Retry (DetailsIslandViewModel), status/cancel/reject
commands (TasksIslandViewModel), Mission Control's drag-enqueue and queue
refresh, and "Open findings folder" (ListsIslandViewModel) used to catch {}
or silently return on a blocked precondition. They now report through the
existing ErrorReported -> FlashFooterError path, with new en/de locale keys
and Ui.Tests covering each converted command.
mika kuns