feat(tenant): business-date-scope monitor lease lanes and authorization-failure cancellation

Add an optional lane filter to the monitor task lease so callers can pull
a specific lane (e.g. high) and scope authorization-failure cancellation
to the failing task's business date, so a challenge on one day no longer
cancels queued tasks for another day. Monitor authorization-failure
cancellation now requires a business date and no-ops without one. Also
stop writing the nonexistent desktop_tasks.completed_at column when
canceling queued tasks for an authorization failure.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

server/internal/tenant/app/desktop_task_authorization_failure.go

@@ -146,6 +146,11 @@ func loadQueuedDesktopAuthorizationFailureCandidates(
 	tx pgx.Tx,
 	task *repository.DesktopTask,
 ) ([]queuedDesktopAuthorizationFailureCandidate, error) {
+	businessDate := desktopAuthorizationTaskBusinessDate(task)
+	if task != nil && task.Kind == "monitor" && businessDate == "" {
+		return nil, nil
+	}
+
 	rows, err := tx.Query(ctx, `
 		SELECT desktop_id, monitor_task_id
 		FROM desktop_tasks
@@ -157,9 +162,19 @@ func loadQueuedDesktopAuthorizationFailureCandidates(
 		  AND (kind = 'monitor' OR target_account_id = $5)
 		  AND platform_id = $6
 		  AND desktop_id <> $7
+		  AND (
+			kind <> 'monitor'
+			OR COALESCE(
+				NULLIF(payload ->> 'business_date', ''),
+				NULLIF(payload ->> 'businessDate', ''),
+				NULLIF(payload ->> 'metric_date', ''),
+				NULLIF(payload ->> 'date', ''),
+				''
+			) = $8
+		  )
 		ORDER BY COALESCE(enqueued_at, created_at) ASC, created_at ASC, desktop_id ASC
 		FOR UPDATE SKIP LOCKED
-	`, task.TenantID, task.WorkspaceID, task.Kind, task.TargetClientID, task.TargetAccountID, task.Platform, task.DesktopID)
+	`, task.TenantID, task.WorkspaceID, task.Kind, task.TargetClientID, task.TargetAccountID, task.Platform, task.DesktopID, businessDate)
 	if err != nil {
 		return nil, response.ErrInternal(50121, "desktop_task_authorization_failure_query_failed", "failed to select queued desktop tasks blocked by authorization failure")
 	}
@@ -186,6 +201,19 @@ func loadQueuedDesktopAuthorizationFailureCandidates(
 	return candidates, nil
 }
 
+func desktopAuthorizationTaskBusinessDate(task *repository.DesktopTask) string {
+	if task == nil || len(task.Payload) == 0 {
+		return ""
+	}
+	payload := unmarshalJSONObject(task.Payload)
+	for _, key := range []string{"business_date", "businessDate", "metric_date", "date"} {
+		if value := desktopAuthorizationFailureString(payload[key]); value != "" {
+			return value
+		}
+	}
+	return ""
+}
+
 func finishQueuedDesktopTaskForAuthorizationFailure(
 	ctx context.Context,
 	tx pgx.Tx,
@@ -193,19 +221,7 @@ func finishQueuedDesktopTaskForAuthorizationFailure(
 	status string,
 	errorJSON []byte,
 ) (*repository.DesktopTask, error) {
-	row := tx.QueryRow(ctx, `
+	row := tx.QueryRow(ctx, finishQueuedDesktopTaskForAuthorizationFailureSQL(),
-		UPDATE desktop_tasks AS t
-		SET status = $2,
-		    result = NULL,
-		    error = $3,
-		    active_attempt_id = NULL,
-		    lease_token_hash = NULL,
-		    lease_expires_at = NULL,
-		    completed_at = NOW(),
-		    updated_at = NOW()
-		WHERE desktop_id = $1
-		  AND status = 'queued'
-		RETURNING `+desktopTaskRepositoryReturningColumns,
 		desktopID,
 		status,
 		errorJSON,
@@ -220,6 +236,21 @@ func finishQueuedDesktopTaskForAuthorizationFailure(
 	return updated, nil
 }
 
+func finishQueuedDesktopTaskForAuthorizationFailureSQL() string {
+	return `
+		UPDATE desktop_tasks AS t
+		SET status = $2,
+		    result = NULL,
+		    error = $3,
+		    active_attempt_id = NULL,
+		    lease_token_hash = NULL,
+		    lease_expires_at = NULL,
+		    updated_at = NOW()
+		WHERE desktop_id = $1
+		  AND status = 'queued'
+		RETURNING ` + desktopTaskRepositoryReturningColumns
+}
+
 func desktopAuthorizationFailureDispositionFromPayload(
 	task *repository.DesktopTask,
 	payload map[string]any,

server/internal/tenant/app/desktop_task_service.go

@@ -107,6 +107,7 @@ type LeaseDesktopTaskRequest struct {
 	TaskID      *string  `json:"task_id"`
 	Kind        *string  `json:"kind" binding:"omitempty,oneof=publish monitor"`
 	PlatformIDs []string `json:"platform_ids"`
+	Lanes       []string `json:"lanes"`
 }
 
 type LeaseDesktopTaskResponse struct {
@@ -216,6 +217,7 @@ func (s *DesktopTaskService) Lease(ctx context.Context, client *repository.Deskt
 		LeaseTokenHash: tokenHash,
 	}
 	eligiblePlatformIDs := normalizeDesktopTaskLeasePlatformIDs(req.PlatformIDs)
+	eligibleLanes := normalizeDesktopTaskLeaseLanes(req.Lanes)
 
 	if s.logger != nil {
 		fields := []zap.Field{
@@ -235,7 +237,7 @@ func (s *DesktopTaskService) Lease(ctx context.Context, client *repository.Deskt
 	case taskID != nil:
 		task, err = s.leaseQueuedDesktopTaskByID(ctx, client, *taskID, leaseParams)
 	case req.Kind != nil && strings.TrimSpace(*req.Kind) == "monitor":
-		task, err = s.leaseNextQueuedMonitorTask(ctx, client, leaseParams, eligiblePlatformIDs)
+		task, err = s.leaseNextQueuedMonitorTask(ctx, client, leaseParams, eligiblePlatformIDs, eligibleLanes)
 	case req.Kind != nil && strings.TrimSpace(*req.Kind) == "publish":
 		task, err = s.leaseNextQueuedPublishTask(ctx, client, leaseParams)
 	default:
@@ -523,6 +525,7 @@ func (s *DesktopTaskService) leaseNextQueuedMonitorTask(
 	client *repository.DesktopClient,
 	params repository.DesktopTaskLeaseParams,
 	eligiblePlatformIDs []string,
+	eligibleLanes []string,
 ) (*repository.DesktopTask, error) {
 	tx, err := beginDesktopMonitorLeaseTx(ctx, s.pool, client.ID)
 	if err != nil {
@@ -538,6 +541,7 @@ func (s *DesktopTaskService) leaseNextQueuedMonitorTask(
 		params.LeaseTokenHash,
 		maxConcurrentMonitorPlatformsPerDesktopClient,
 		eligiblePlatformIDs,
+		eligibleLanes,
 	)
 	task, err := scanRepositoryDesktopTask(row)
 	if err != nil {
@@ -582,10 +586,14 @@ func leaseNextQueuedMonitorTaskSQL() string {
 			 AND dt.platform_id = ca.platform_id
 			 AND dt.kind = 'monitor'
 			 AND dt.status = 'queued'
-			 AND (
+				 AND (
-				COALESCE(array_length($7::text[], 1), 0) = 0
+					COALESCE(array_length($7::text[], 1), 0) = 0
-				OR dt.platform_id = ANY($7::text[])
+					OR dt.platform_id = ANY($7::text[])
-			 )
+				 )
+				 AND (
+					COALESCE(array_length($8::text[], 1), 0) = 0
+					OR dt.lane = ANY($8::text[])
+				 )
 			WHERE NOT EXISTS (
 				SELECT 1
 				FROM desktop_tasks AS active
@@ -701,6 +709,32 @@ func normalizeDesktopTaskLeasePlatformIDs(values []string) []string {
 	return result
 }
 
+func normalizeDesktopTaskLeaseLanes(values []string) []string {
+	allowed := map[string]struct{}{
+		"high":           {},
+		"normal":         {},
+		"normal_boosted": {},
+		"retry":          {},
+	}
+	result := make([]string, 0, len(values))
+	seen := make(map[string]struct{}, len(values))
+	for _, value := range values {
+		normalized := strings.ToLower(strings.TrimSpace(value))
+		if _, ok := allowed[normalized]; !ok {
+			continue
+		}
+		if _, exists := seen[normalized]; exists {
+			continue
+		}
+		seen[normalized] = struct{}{}
+		result = append(result, normalized)
+	}
+	if len(result) == 0 {
+		return nil
+	}
+	return result
+}
+
 func monitorAccountLeaseLockSQL(alias string) string {
 	return fmt.Sprintf(`hashtextextended(
 				concat_ws(

server/internal/tenant/app/desktop_task_service_test.go

@@ -462,6 +462,7 @@ func TestLeaseNextQueuedMonitorTaskSQLUsesAccountIdentityAndClientSlots(t *testi
 		"WITH current_accounts AS",
 		"client_id = $3",
 		"COALESCE(array_length($7::text[], 1), 0) = 0 OR dt.platform_id = ANY($7::text[])",
+		"COALESCE(array_length($8::text[], 1), 0) = 0 OR dt.lane = ANY($8::text[])",
 		"dt.target_account_id = target_account.desktop_id",
 		"target_account.account_fingerprint",
 		"target_account.platform_uid",
@@ -502,6 +503,39 @@ func TestNormalizeDesktopTaskLeasePlatformIDs(t *testing.T) {
 	}
 }
 
+func TestNormalizeDesktopTaskLeaseLanes(t *testing.T) {
+	t.Parallel()
+
+	got := normalizeDesktopTaskLeaseLanes([]string{" HIGH ", "normal", "", "high", "unsupported"})
+	want := []string{"high", "normal"}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("normalizeDesktopTaskLeaseLanes() = %#v, want %#v", got, want)
+	}
+	if got := normalizeDesktopTaskLeaseLanes([]string{" ", "unsupported"}); got != nil {
+		t.Fatalf("normalizeDesktopTaskLeaseLanes(blank) = %#v, want nil", got)
+	}
+}
+
+func TestFinishQueuedDesktopTaskForAuthorizationFailureSQLMatchesDesktopTaskSchema(t *testing.T) {
+	t.Parallel()
+
+	normalized := normalizeSQLForDesktopTaskTest(finishQueuedDesktopTaskForAuthorizationFailureSQL())
+	if strings.Contains(normalized, "completed_at") {
+		t.Fatalf("authorization cancellation query writes nonexistent desktop_tasks.completed_at: %s", normalized)
+	}
+	for _, fragment := range []string{
+		"SET status = $2",
+		"active_attempt_id = NULL",
+		"lease_token_hash = NULL",
+		"lease_expires_at = NULL",
+		"updated_at = NOW()",
+	} {
+		if !strings.Contains(normalized, fragment) {
+			t.Fatalf("authorization cancellation query missing %q: %s", fragment, normalized)
+		}
+	}
+}
+
 func TestLeaseQueuedDesktopTaskByIDSQLUsesAccountIdentityAndClientSlots(t *testing.T) {
 	t.Parallel()
 

server/internal/tenant/app/monitoring_callback_service_test.go

@@ -647,6 +647,7 @@ func TestMonitorAuthorizationFollowupCancellationIsPlatformScopedAcrossAccounts(
 		TargetClientID:  uuid.New(),
 		TargetAccountID: uuid.New(),
 		Platform:        "doubao",
+		Payload:         []byte(`{"business_date":"2026-07-22"}`),
 	}
 
 	rows, err := loadQueuedDesktopAuthorizationFailureCandidates(context.Background(), tx, task)
@@ -659,6 +660,10 @@ func TestMonitorAuthorizationFollowupCancellationIsPlatformScopedAcrossAccounts(
 	assert.Contains(t, query, "AND target_client_id = $4")
 	assert.Contains(t, query, "AND (kind = 'monitor' OR target_account_id = $5)")
 	assert.Contains(t, query, "AND platform_id = $6")
+	assert.Contains(t, query, "COALESCE( NULLIF(payload ->> 'business_date', '')")
+	assert.Contains(t, query, "= $8")
+	require.Len(t, tx.queryArgs, 8)
+	assert.Equal(t, "2026-07-22", tx.queryArgs[7])
 	assert.Equal(t, "aborted", desktopAuthorizationFollowupTaskStatus("monitor"))
 	assert.Equal(t, "failed", desktopAuthorizationFollowupTaskStatus("publish"))
 	assert.Equal(t, "task_canceled", desktopAuthorizationFollowupEventType(&repository.DesktopTask{
@@ -667,6 +672,24 @@ func TestMonitorAuthorizationFollowupCancellationIsPlatformScopedAcrossAccounts(
 	}))
 }
 
+func TestMonitorAuthorizationFollowupCancellationRequiresBusinessDate(t *testing.T) {
+	tx := &captureDailyMonitorTaskTx{}
+	task := &repository.DesktopTask{
+		Kind:            "monitor",
+		TenantID:        77,
+		WorkspaceID:     88,
+		TargetClientID:  uuid.New(),
+		TargetAccountID: uuid.New(),
+		Platform:        "doubao",
+	}
+
+	rows, err := loadQueuedDesktopAuthorizationFailureCandidates(context.Background(), tx, task)
+
+	require.NoError(t, err)
+	assert.Empty(t, rows)
+	assert.False(t, tx.queryCalled)
+}
+
 func TestFailRemainingMonitoringTasksAfterFinalAccountChallengeScopesToModelAndClient(t *testing.T) {
 	targetClientID := uuid.New().String()
 	completedAt := time.Date(2026, 7, 14, 9, 30, 0, 0, time.UTC)