restore behavior of reset aitask if unknown app id

Author: mafredri

coderd/provisionerdserver/provisionerdserver.go

@@ -2029,6 +2029,7 @@ func (s *server) completeWorkspaceBuildJob(ctx context.Context, job database.Pro
 
 			if !slices.Contains(appIDs, appID) {
 				unknownAppID = appID
+				hasAITask = false
 			} else {
 				// Only parse for valid app and agent to avoid fk violation.
 				id, err := uuid.Parse(appID)

coderd/provisionerdserver/provisionerdserver_test.go

@@ -2965,8 +2965,8 @@ func TestCompleteJob(t *testing.T) {
 					},
 					isTask:           true,
 					expectTaskStatus: database.TaskStatusInitializing,
-					expectHasAiTask:  true,
-					expectUsageEvent: true, // We no longer reset hasAITask if the app doesn't exist.
+					expectHasAiTask:  false,
+					expectUsageEvent: false,
 				},
 				{
 					name:       "has_ai_task is set to true, but transition is not start",