fix: Retry blocked task button does nothing due to missing query invalidation

retryBlockedTask was not in the centralized invalidation map, so the
mutation succeeded server-side but the UI never refreshed. Also changed
the button to wait for the mutation response before closing the slide-over
and show a loading spinner.

apps/web/src/components/execution/TaskSlideOver.tsx

@@ -272,13 +272,16 @@ export function TaskSlideOver({ onOpenChat }: TaskSlideOverProps) {
                   variant="outline"
                   size="sm"
                   className="gap-1.5"
+                  disabled={retryBlockedTaskMutation.isPending}
                   onClick={() => {
-                    retryBlockedTaskMutation.mutate({ taskId: task.id });
-                    close();
+                    retryBlockedTaskMutation.mutate(
+                      { taskId: task.id },
+                      { onSuccess: () => close() },
+                    );
                   }}
                 >
-                  <RotateCw className="h-3.5 w-3.5" />
-                  Retry
+                  <RotateCw className={cn("h-3.5 w-3.5", retryBlockedTaskMutation.isPending && "animate-spin")} />
+                  {retryBlockedTaskMutation.isPending ? "Retrying…" : "Retry"}
                 </Button>
               ) : (
                 <Button

apps/web/src/lib/invalidation.ts

@@ -70,6 +70,7 @@ const INVALIDATION_MAP: Partial<Record<MutationName, QueryName[]>> = {
   queueTask: ["listTasks", "listInitiativeTasks", "listPhaseTasks"],
 
   deleteTask: ["listTasks", "listInitiativeTasks", "listPhaseTasks", "listChangeSets"],
+  retryBlockedTask: ["listTasks", "listInitiativeTasks", "listPhaseTasks", "listAgents"],
 
   // --- Change Sets ---
   revertChangeSet: ["listPhases", "listPhaseTasks", "listInitiativeTasks", "listPages", "getPage", "listChangeSets", "getRootPage", "getChangeSet"],