feat(tasks): stop tasks that miss a configurable findings checkpoint

server/task_runtime.go

@@ -1,5 +1,7 @@
 package server
 
+import "time"
+
 // taskRunSeconds computes displayed active runtime from persisted segment data.
 // Segment timestamps are unix seconds; a zero start means no active segment.
 func taskRunSeconds(active, segmentStarted, now int64, status string, paused, queued bool) int64 {
@@ -23,3 +25,12 @@ func finalizeTaskRunSeconds(active, segmentStarted, now int64) (int64, int64) {
 	}
 	return active, 0
 }
+
+// noResultRemaining excludes pauses, queue time and closed schedule windows by
+// using the same active execution segments as the task runtime display.
+func noResultRemaining(seconds int, state taskLifecycleState, now int64) time.Duration {
+	runtime := taskRunSeconds(state.ActiveRunSeconds, state.RunSegmentStartedAt, now, state.Status, state.Paused, state.Queued)
+	elapsed := max(int64(0), runtime-state.NoResultBaseSeconds)
+	remaining := max(int64(0), int64(seconds)-elapsed)
+	return time.Duration(remaining) * time.Second
+}