diff --git a/backend-api/cmd/api/main.go b/backend-api/cmd/api/main.go
index 281e372..bfb8fc5 100644
--- a/backend-api/cmd/api/main.go
+++ b/backend-api/cmd/api/main.go
@@ -189,6 +189,14 @@ func buildRouter(
 	if err != nil {
 		return nil, err
 	}
+	authorizations, err := usecase.NewOrderAuthorizationService(
+		store,
+		clock,
+		ids,
+	)
+	if err != nil {
+		return nil, err
+	}
 	passwords, err := password.NewBcrypt(12)
 	if err != nil {
 		return nil, err
@@ -214,7 +222,11 @@ func buildRouter(
 		return nil, err
 	}
 
-	webService, err := webui.NewUsecaseAdapter(tasks, assets)
+	webService, err := webui.NewUsecaseAdapter(
+		tasks,
+		assets,
+		authorizations,
+	)
 	if err != nil {
 		return nil, err
 	}
@@ -255,9 +267,10 @@ func buildRouter(
 	}
 	registerAdminRoutes, err := httpapi.NewAdminRouteRegistrar(
 		httpapi.AdminServices{
-			Assets:  assets,
-			Tasks:   tasks,
-			Results: results,
+			Assets:         assets,
+			Tasks:          tasks,
+			Results:        results,
+			Authorizations: authorizations,
 		},
 		webHandler,
 	)
diff --git a/backend-api/internal/domain/task.go b/backend-api/internal/domain/task.go
index 3842fea..4ec5c24 100644
--- a/backend-api/internal/domain/task.go
+++ b/backend-api/internal/domain/task.go
@@ -117,6 +117,7 @@ type ExecutionCandidateBatch struct {
 	ProvenanceJSON               *string
 	CandidatesJSON               string
 	RecommendationJSON           *string
+	ReadyEvent                   *TaskEvent
 	ReceivedAt                   time.Time
 	ReceivedAfterExecutionExpiry bool
 }
@@ -253,6 +254,54 @@ type CandidateDecisionDataset struct {
 	HumanReviews   []CandidateHumanReview
 }
 
+type OrderAuthorizationStatus string
+
+const (
+	OrderAuthorizationPendingDelivery OrderAuthorizationStatus = "PENDING_DELIVERY"
+	OrderAuthorizationDelivered       OrderAuthorizationStatus = "DELIVERED"
+	OrderAuthorizationAcknowledged    OrderAuthorizationStatus = "ACKNOWLEDGED"
+	OrderAuthorizationExecuting       OrderAuthorizationStatus = "EXECUTING"
+	OrderAuthorizationConsumed        OrderAuthorizationStatus = "CONSUMED"
+	OrderAuthorizationFailed          OrderAuthorizationStatus = "FAILED"
+	OrderAuthorizationRevoked         OrderAuthorizationStatus = "REVOKED"
+	OrderAuthorizationSuperseded      OrderAuthorizationStatus = "SUPERSEDED"
+)
+
+type OrderAuthorization struct {
+	ID                          string
+	TaskID                      string
+	ExecutionID                 string
+	AuthorizationVersion        int
+	CandidateKey                string
+	TaskContentSHA256           string
+	TaskVersion                 int64
+	ReviewID                    string
+	ReviewVersion               int
+	UserID                      string
+	DeviceID                    string
+	ClaimGeneration             int64
+	OriginalSKU                 string
+	Quantity                    int
+	CandidateSKUText            string
+	CandidatePriceText          string
+	CardSignature               string
+	DetailSignature             string
+	DetailEvidenceSHA256        string
+	SpecificationEvidenceSHA256 string
+	Status                      OrderAuthorizationStatus
+	SupersedesAuthorizationID   *string
+	CreatedByUserID             string
+	CreatedAt                   time.Time
+	DeliveredAt                 *time.Time
+	AcknowledgedAt              *time.Time
+	ExecutionStartedAt          *time.Time
+	ConsumedAt                  *time.Time
+	FailedAt                    *time.Time
+	RevokedAt                   *time.Time
+	FailureCode                 *string
+	FailureMessage              *string
+}
+
 type ExecutionReport struct {
 	Events          []ExecutionEvent
 	EvidenceAssets  []ExecutionEvidenceAsset
@@ -262,11 +311,12 @@ type ExecutionReport struct {
 }
 
 type TaskDetail struct {
-	Task      PurchaseTask
-	Asset     Asset
-	Execution *TaskExecution
-	Events    []TaskEvent
-	Report    *ExecutionReport
+	Task                PurchaseTask
+	Asset               Asset
+	Execution           *TaskExecution
+	Events              []TaskEvent
+	Report              *ExecutionReport
+	OrderAuthorizations []OrderAuthorization
 }
 
 type TaskValidationError struct {
diff --git a/backend-api/internal/platform/migration/claims_migration_test.go b/backend-api/internal/platform/migration/claims_migration_test.go
index 0f76fb5..1a2b453 100644
--- a/backend-api/internal/platform/migration/claims_migration_test.go
+++ b/backend-api/internal/platform/migration/claims_migration_test.go
@@ -34,8 +34,11 @@ func TestClaimsMigrationPreservesHistoryAcrossUpDownUp(t *testing.T) {
 
 	if applied, err := runner.Up(ctx); err != nil {
 		t.Fatalf("initial Up() error = %v", err)
-	} else if applied != 7 {
-		t.Fatalf("initial Up() applied = %d, want 7", applied)
+	} else if applied != 8 {
+		t.Fatalf("initial Up() applied = %d, want 8", applied)
+	}
+	if err := runner.Down(ctx); err != nil {
+		t.Fatalf("initial Down(v8) error = %v", err)
 	}
 	if err := runner.Down(ctx); err != nil {
 		t.Fatalf("initial Down(v7) error = %v", err)
@@ -50,9 +53,14 @@ func TestClaimsMigrationPreservesHistoryAcrossUpDownUp(t *testing.T) {
 	seedClaimsHistoricalFixture(t, db)
 
 	if applied, err := runner.Up(ctx); err != nil {
-		t.Fatalf("Up(v5-v7) over historical data error = %v", err)
-	} else if applied != 3 {
-		t.Fatalf("Up(v5-v7) applied = %d, want 3", applied)
+		t.Fatalf("Up(v5-v8) over historical data error = %v", err)
+	} else if applied != 4 {
+		t.Fatalf("Up(v5-v8) applied = %d, want 4", applied)
+	}
+	assertClaimsHistory(t, db, true)
+
+	if err := runner.Down(ctx); err != nil {
+		t.Fatalf("Down(v8) with compatible history error = %v", err)
 	}
 	assertClaimsHistory(t, db, true)
 
@@ -77,9 +85,9 @@ func TestClaimsMigrationPreservesHistoryAcrossUpDownUp(t *testing.T) {
 	assertClaimsHistory(t, db, false)
 
 	if applied, err := runner.Up(ctx); err != nil {
-		t.Fatalf("final Up(v4-v7) error = %v", err)
-	} else if applied != 4 {
-		t.Fatalf("final Up(v4-v7) applied = %d, want 4", applied)
+		t.Fatalf("final Up(v4-v8) error = %v", err)
+	} else if applied != 5 {
+		t.Fatalf("final Up(v4-v8) applied = %d, want 5", applied)
 	}
 	assertClaimsHistory(t, db, true)
 }
@@ -315,6 +323,9 @@ func TestClaimsMigrationDownFailsClosedForNewAuditData(t *testing.T) {
 		t.Fatalf("insert v4 audit event: %v", err)
 	}
 
+	if err := runner.Down(ctx); err != nil {
+		t.Fatalf("Down(v8) error = %v", err)
+	}
 	if err := runner.Down(ctx); err != nil {
 		t.Fatalf("Down(v7) error = %v", err)
 	}
diff --git a/backend-api/internal/platform/migration/runner_test.go b/backend-api/internal/platform/migration/runner_test.go
index 08edcd1..e4a0dc5 100644
--- a/backend-api/internal/platform/migration/runner_test.go
+++ b/backend-api/internal/platform/migration/runner_test.go
@@ -27,8 +27,8 @@ func TestRunnerSupportsUpStatusDownAndIdempotentUp(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Up() error = %v", err)
 	}
-	if applied != 7 {
-		t.Fatalf("Up() applied = %d, want 7", applied)
+	if applied != 8 {
+		t.Fatalf("Up() applied = %d, want 8", applied)
 	}
 	assertStatuses(t, runner, map[int64]bool{
 		1: true,
@@ -38,6 +38,7 @@ func TestRunnerSupportsUpStatusDownAndIdempotentUp(t *testing.T) {
 		5: true,
 		6: true,
 		7: true,
+		8: true,
 	})
 
 	applied, err = runner.Up(context.Background())
@@ -58,7 +59,8 @@ func TestRunnerSupportsUpStatusDownAndIdempotentUp(t *testing.T) {
 		4: true,
 		5: true,
 		6: true,
-		7: false,
+		7: true,
+		8: false,
 	})
 
 	applied, err = runner.Up(context.Background())
@@ -76,6 +78,7 @@ func TestRunnerSupportsUpStatusDownAndIdempotentUp(t *testing.T) {
 		5: true,
 		6: true,
 		7: true,
+		8: true,
 	})
 }
 
diff --git a/backend-api/internal/repository/sqlite/auth_repository_test.go b/backend-api/internal/repository/sqlite/auth_repository_test.go
index 939a9a5..d37a423 100644
--- a/backend-api/internal/repository/sqlite/auth_repository_test.go
+++ b/backend-api/internal/repository/sqlite/auth_repository_test.go
@@ -383,6 +383,9 @@ func TestAuthMigrationCanRollbackWithoutRebuildingPurchaseTasks(
 	if err != nil {
 		t.Fatalf("migration.New() error = %v", err)
 	}
+	if err := runner.Down(context.Background()); err != nil {
+		t.Fatalf("Down(v8) error = %v", err)
+	}
 	if err := runner.Down(context.Background()); err != nil {
 		t.Fatalf("Down(v7) error = %v", err)
 	}
@@ -411,9 +414,9 @@ func TestAuthMigrationCanRollbackWithoutRebuildingPurchaseTasks(
 		t.Fatal("purchase_tasks was lost during auth migration rollback")
 	}
 	if applied, err := runner.Up(context.Background()); err != nil {
-		t.Fatalf("Up(v3-v7) error = %v", err)
-	} else if applied != 5 {
-		t.Fatalf("Up(v3-v7) applied = %d, want 5", applied)
+		t.Fatalf("Up(v3-v8) error = %v", err)
+	} else if applied != 6 {
+		t.Fatalf("Up(v3-v8) applied = %d, want 6", applied)
 	}
 }
 
diff --git a/backend-api/internal/repository/sqlite/execution_result_repository.go b/backend-api/internal/repository/sqlite/execution_result_repository.go
index aafff3c..7bbeacf 100644
--- a/backend-api/internal/repository/sqlite/execution_result_repository.go
+++ b/backend-api/internal/repository/sqlite/execution_result_repository.go
@@ -192,6 +192,33 @@ func (s *Store) StoreExecutionCandidates(
 	); err != nil {
 		return false, err
 	}
+	if candidate.ReadyEvent != nil && !expired {
+		result, err := tx.ExecContext(
+			ctx,
+			`UPDATE purchase_tasks
+			SET status = 'WAITING_CONFIRMATION',
+				version = version + 1,
+				updated_at = ?
+			WHERE id = ? AND status = 'RUNNING'
+				AND version = ? AND cancel_requested_at IS NULL`,
+			formatTimestamp(write.Now),
+			write.TaskID,
+			task.Version,
+		)
+		if err != nil {
+			return false, repositoryFailure(err)
+		}
+		affected, err := result.RowsAffected()
+		if err != nil {
+			return false, repositoryFailure(err)
+		}
+		if affected != 1 {
+			return false, usecase.ErrTaskStateConflict
+		}
+		if err := insertTaskEvent(ctx, tx, *candidate.ReadyEvent); err != nil {
+			return false, err
+		}
+	}
 	if err := insertExecutionResultRequest(ctx, tx, write, nil); err != nil {
 		return false, err
 	}
diff --git a/backend-api/internal/repository/sqlite/order_authorization_repository.go b/backend-api/internal/repository/sqlite/order_authorization_repository.go
new file mode 100644
index 0000000..a8c9f67
--- /dev/null
+++ b/backend-api/internal/repository/sqlite/order_authorization_repository.go
@@ -0,0 +1,684 @@
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	"cmroubao/backend-api/internal/domain"
+	"cmroubao/backend-api/internal/usecase"
+)
+
+func (s *Store) CreateOrderAuthorization(
+	ctx context.Context,
+	write usecase.CreateOrderAuthorizationWrite,
+) (domain.OrderAuthorization, bool, error) {
+	tx, err := s.db.BeginTx(ctx, nil)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, repositoryFailure(err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	existing, found, err := lookupOrderAuthorizationRequest(
+		ctx,
+		tx,
+		write.Command.ActorUserID,
+		write.Command.IdempotencyKey,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	if found {
+		if existing.RequestSHA256 != write.RequestSHA256 ||
+			existing.TaskID != write.Command.TaskID {
+			return domain.OrderAuthorization{}, false, usecase.ErrIdempotencyConflict
+		}
+		authorization, err := getOrderAuthorization(
+			ctx,
+			tx,
+			existing.AuthorizationID,
+		)
+		if err != nil {
+			return domain.OrderAuthorization{}, false, err
+		}
+		if err := tx.Commit(); err != nil {
+			return domain.OrderAuthorization{}, false, repositoryFailure(err)
+		}
+		return authorization, true, nil
+	}
+
+	task, err := getTaskByID(
+		ctx,
+		tx,
+		localAdminSubject,
+		write.Command.TaskID,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	if task.Status != domain.TaskStatusWaitingConfirmation ||
+		task.Version != write.Command.ExpectedTaskVersion ||
+		task.CancelRequestedAt != nil ||
+		task.ClaimedByUserID == nil ||
+		task.ClaimedByDeviceID == nil ||
+		task.ClaimExpiresAt == nil ||
+		!write.Now.Before(*task.ClaimExpiresAt) ||
+		usecase.TaskContentSHA256(task) != write.Command.TaskContentSHA256 {
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	}
+
+	var executionUserID, executionDeviceID string
+	var executionClaimGeneration int64
+	var executionFinishedAt sql.NullString
+	err = tx.QueryRowContext(
+		ctx,
+		`SELECT user_id, device_id, claim_generation, finished_at
+		FROM task_executions
+		WHERE id = ? AND task_id = ?`,
+		write.Command.ExecutionID,
+		write.Command.TaskID,
+	).Scan(
+		&executionUserID,
+		&executionDeviceID,
+		&executionClaimGeneration,
+		&executionFinishedAt,
+	)
+	if errors.Is(err, sql.ErrNoRows) {
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	}
+	if err != nil {
+		return domain.OrderAuthorization{}, false, repositoryFailure(err)
+	}
+	if executionFinishedAt.Valid ||
+		executionUserID != *task.ClaimedByUserID ||
+		executionDeviceID != *task.ClaimedByDeviceID ||
+		executionClaimGeneration != task.ClaimGeneration {
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	}
+
+	observations, err := orderAuthorizationObservations(
+		ctx,
+		tx,
+		write.Command.TaskID,
+		write.Command.ExecutionID,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	if len(observations) == 0 ||
+		len(observations) != len(write.Command.Items) {
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	}
+	byKey := make(map[string]orderAuthorizationObservation, len(observations))
+	for _, observation := range observations {
+		byKey[observation.CandidateKey] = observation
+	}
+	selected, found := byKey[write.Command.CandidateKey]
+	if !found {
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	}
+	for _, item := range write.Command.Items {
+		if _, found := byKey[item.CandidateKey]; !found {
+			return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+		}
+		for _, reason := range item.ReasonCodes {
+			if task.MaxBudgetCents == nil &&
+				(reason == "PRICE_ACCEPTABLE" || reason == "PRICE_TOO_HIGH") {
+				return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+			}
+		}
+	}
+
+	activeID, activeStatus, err := activeOrderAuthorization(
+		ctx,
+		tx,
+		write.Command.ExecutionID,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	switch {
+	case activeID == nil && write.Command.SupersedesAuthorizationID != nil:
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	case activeID != nil &&
+		(write.Command.SupersedesAuthorizationID == nil ||
+			*write.Command.SupersedesAuthorizationID != *activeID ||
+			activeStatus != domain.OrderAuthorizationPendingDelivery):
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	}
+	if activeID != nil {
+		result, err := tx.ExecContext(
+			ctx,
+			`UPDATE order_authorizations
+			SET status = 'SUPERSEDED'
+			WHERE id = ? AND status = 'PENDING_DELIVERY'`,
+			*activeID,
+		)
+		if err != nil {
+			return domain.OrderAuthorization{}, false, repositoryFailure(err)
+		}
+		affected, err := result.RowsAffected()
+		if err != nil {
+			return domain.OrderAuthorization{}, false, repositoryFailure(err)
+		}
+		if affected != 1 {
+			return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+		}
+	}
+
+	latestReviewID, latestReviewVersion, err := latestCandidateHumanReview(
+		ctx,
+		tx,
+		write.Command.ExecutionID,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	review := domain.CandidateHumanReview{
+		ID:                       write.ReviewID,
+		TaskID:                   write.Command.TaskID,
+		ExecutionID:              write.Command.ExecutionID,
+		TaskContentSHA256:        write.Command.TaskContentSHA256,
+		Version:                  latestReviewVersion + 1,
+		ReasonSchemaVersion:      write.Command.ReasonSchemaVersion,
+		Outcome:                  "CANDIDATE_ACCEPTED",
+		SelectedCandidateOrdinal: &selected.Ordinal,
+		PrimaryReasonCode:        write.Command.PrimaryReasonCode,
+		Note:                     write.Command.Note,
+		SupersedesReviewID:       latestReviewID,
+		ActorUserID:              write.Command.ActorUserID,
+		CreatedAt:                write.Now,
+		Items:                    make([]domain.CandidateHumanReviewItem, 0, len(write.Command.Items)),
+	}
+	for _, item := range write.Command.Items {
+		observation := byKey[item.CandidateKey]
+		review.Items = append(review.Items, domain.CandidateHumanReviewItem{
+			CandidateOrdinal:  observation.Ordinal,
+			Label:             item.Label,
+			PrimaryReasonCode: item.PrimaryReasonCode,
+			ReasonCodes:       append([]string(nil), item.ReasonCodes...),
+			Note:              item.Note,
+		})
+	}
+	if err := insertAdminCandidateReview(ctx, tx, review); err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+
+	authorizationVersion, err := nextOrderAuthorizationVersion(
+		ctx,
+		tx,
+		write.Command.ExecutionID,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	authorization := domain.OrderAuthorization{
+		ID:                          write.AuthorizationID,
+		TaskID:                      task.ID,
+		ExecutionID:                 write.Command.ExecutionID,
+		AuthorizationVersion:        authorizationVersion,
+		CandidateKey:                selected.CandidateKey,
+		TaskContentSHA256:           write.Command.TaskContentSHA256,
+		TaskVersion:                 task.Version + 1,
+		ReviewID:                    review.ID,
+		ReviewVersion:               review.Version,
+		UserID:                      executionUserID,
+		DeviceID:                    executionDeviceID,
+		ClaimGeneration:             executionClaimGeneration,
+		OriginalSKU:                 task.SKU,
+		Quantity:                    task.Quantity,
+		CandidateSKUText:            selected.SKUText,
+		CandidatePriceText:          selected.PriceText,
+		CardSignature:               selected.CardSignature,
+		DetailSignature:             selected.DetailSignature,
+		DetailEvidenceSHA256:        selected.DetailEvidenceSHA256,
+		SpecificationEvidenceSHA256: selected.SpecificationEvidenceSHA256,
+		Status:                      domain.OrderAuthorizationPendingDelivery,
+		SupersedesAuthorizationID:   write.Command.SupersedesAuthorizationID,
+		CreatedByUserID:             write.Command.ActorUserID,
+		CreatedAt:                   write.Now,
+	}
+	if err := insertOrderAuthorization(ctx, tx, authorization); err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	result, err := tx.ExecContext(
+		ctx,
+		`UPDATE purchase_tasks
+		SET version = version + 1, updated_at = ?
+		WHERE id = ? AND status = 'WAITING_CONFIRMATION'
+			AND version = ? AND cancel_requested_at IS NULL`,
+		formatTimestamp(write.Now),
+		task.ID,
+		task.Version,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, repositoryFailure(err)
+	}
+	affected, err := result.RowsAffected()
+	if err != nil {
+		return domain.OrderAuthorization{}, false, repositoryFailure(err)
+	}
+	if affected != 1 {
+		return domain.OrderAuthorization{}, false, usecase.ErrTaskStateConflict
+	}
+	if err := insertTaskEvent(ctx, tx, write.Event); err != nil {
+		return domain.OrderAuthorization{}, false, err
+	}
+	_, err = tx.ExecContext(
+		ctx,
+		`INSERT INTO admin_order_authorization_requests (
+			actor_user_id, idempotency_key, request_sha256,
+			task_id, authorization_id, created_at
+		) VALUES (?, ?, ?, ?, ?, ?)`,
+		write.Command.ActorUserID,
+		write.Command.IdempotencyKey,
+		write.RequestSHA256,
+		write.Command.TaskID,
+		authorization.ID,
+		formatTimestamp(write.Now),
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, false, repositoryFailure(err)
+	}
+	if err := tx.Commit(); err != nil {
+		return domain.OrderAuthorization{}, false, repositoryFailure(err)
+	}
+	return authorization, false, nil
+}
+
+type orderAuthorizationRequestRecord struct {
+	RequestSHA256   string
+	TaskID          string
+	AuthorizationID string
+}
+
+func lookupOrderAuthorizationRequest(
+	ctx context.Context,
+	queryer queryRower,
+	actorUserID string,
+	idempotencyKey string,
+) (orderAuthorizationRequestRecord, bool, error) {
+	var record orderAuthorizationRequestRecord
+	err := queryer.QueryRowContext(
+		ctx,
+		`SELECT request_sha256, task_id, authorization_id
+		FROM admin_order_authorization_requests
+		WHERE actor_user_id = ? AND idempotency_key = ?`,
+		actorUserID,
+		idempotencyKey,
+	).Scan(
+		&record.RequestSHA256,
+		&record.TaskID,
+		&record.AuthorizationID,
+	)
+	if errors.Is(err, sql.ErrNoRows) {
+		return orderAuthorizationRequestRecord{}, false, nil
+	}
+	if err != nil {
+		return orderAuthorizationRequestRecord{}, false, repositoryFailure(err)
+	}
+	return record, true, nil
+}
+
+type orderAuthorizationObservation struct {
+	CandidateKey                string
+	Ordinal                     int
+	SKUText                     string
+	PriceText                   string
+	CardSignature               string
+	DetailSignature             string
+	DetailEvidenceSHA256        string
+	SpecificationEvidenceSHA256 string
+}
+
+func orderAuthorizationObservations(
+	ctx context.Context,
+	queryer queryer,
+	taskID string,
+	executionID string,
+) ([]orderAuthorizationObservation, error) {
+	rows, err := queryer.QueryContext(
+		ctx,
+		`SELECT identity.candidate_key, observation.ordinal,
+			observation.sku_text, observation.price_text,
+			identity.card_signature, identity.detail_signature,
+			identity.detail_evidence_sha256,
+			identity.specification_evidence_sha256
+		FROM candidate_observations AS observation
+		JOIN candidate_observation_identities AS identity
+			ON identity.execution_id = observation.execution_id
+			AND identity.candidate_ordinal = observation.ordinal
+		WHERE observation.task_id = ? AND observation.execution_id = ?
+		ORDER BY observation.ordinal ASC`,
+		taskID,
+		executionID,
+	)
+	if err != nil {
+		return nil, repositoryFailure(err)
+	}
+	defer rows.Close()
+	result := make([]orderAuthorizationObservation, 0, 5)
+	for rows.Next() {
+		var observation orderAuthorizationObservation
+		if err := rows.Scan(
+			&observation.CandidateKey,
+			&observation.Ordinal,
+			&observation.SKUText,
+			&observation.PriceText,
+			&observation.CardSignature,
+			&observation.DetailSignature,
+			&observation.DetailEvidenceSHA256,
+			&observation.SpecificationEvidenceSHA256,
+		); err != nil {
+			return nil, repositoryFailure(err)
+		}
+		result = append(result, observation)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, repositoryFailure(err)
+	}
+	return result, nil
+}
+
+func activeOrderAuthorization(
+	ctx context.Context,
+	queryer queryRower,
+	executionID string,
+) (*string, domain.OrderAuthorizationStatus, error) {
+	var id string
+	var status domain.OrderAuthorizationStatus
+	err := queryer.QueryRowContext(
+		ctx,
+		`SELECT id, status
+		FROM order_authorizations
+		WHERE execution_id = ?
+			AND status IN (
+				'PENDING_DELIVERY',
+				'DELIVERED',
+				'ACKNOWLEDGED',
+				'EXECUTING'
+			)
+		LIMIT 1`,
+		executionID,
+	).Scan(&id, &status)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, "", nil
+	}
+	if err != nil {
+		return nil, "", repositoryFailure(err)
+	}
+	return &id, status, nil
+}
+
+func nextOrderAuthorizationVersion(
+	ctx context.Context,
+	queryer queryRower,
+	executionID string,
+) (int, error) {
+	var version int
+	err := queryer.QueryRowContext(
+		ctx,
+		`SELECT COALESCE(MAX(authorization_version), 0) + 1
+		FROM order_authorizations
+		WHERE execution_id = ?`,
+		executionID,
+	).Scan(&version)
+	if err != nil {
+		return 0, repositoryFailure(err)
+	}
+	return version, nil
+}
+
+func insertAdminCandidateReview(
+	ctx context.Context,
+	tx *sql.Tx,
+	review domain.CandidateHumanReview,
+) error {
+	_, err := tx.ExecContext(
+		ctx,
+		`INSERT INTO candidate_human_reviews (
+			id, execution_id, task_id, version, reason_schema_version, outcome,
+			selected_candidate_ordinal, primary_reason_code, note,
+			supersedes_review_id, actor_user_id, actor_device_id, created_at,
+			received_after_execution_expiry
+		) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NULL, ?, 0)`,
+		review.ID,
+		review.ExecutionID,
+		review.TaskID,
+		review.Version,
+		review.ReasonSchemaVersion,
+		review.Outcome,
+		nullableInt(review.SelectedCandidateOrdinal),
+		review.PrimaryReasonCode,
+		review.Note,
+		nullableString(review.SupersedesReviewID),
+		review.ActorUserID,
+		formatTimestamp(review.CreatedAt),
+	)
+	if err != nil {
+		return repositoryFailure(err)
+	}
+	for _, item := range review.Items {
+		_, err = tx.ExecContext(
+			ctx,
+			`INSERT INTO candidate_human_review_items (
+				review_id, candidate_ordinal, label, primary_reason_code, note
+			) VALUES (?, ?, ?, ?, ?)`,
+			review.ID,
+			item.CandidateOrdinal,
+			item.Label,
+			item.PrimaryReasonCode,
+			item.Note,
+		)
+		if err != nil {
+			return repositoryFailure(err)
+		}
+		for _, reason := range item.ReasonCodes {
+			_, err = tx.ExecContext(
+				ctx,
+				`INSERT INTO candidate_human_review_reasons (
+					review_id, candidate_ordinal, reason_code
+				) VALUES (?, ?, ?)`,
+				review.ID,
+				item.CandidateOrdinal,
+				reason,
+			)
+			if err != nil {
+				return repositoryFailure(err)
+			}
+		}
+	}
+	return nil
+}
+
+func insertOrderAuthorization(
+	ctx context.Context,
+	tx *sql.Tx,
+	authorization domain.OrderAuthorization,
+) error {
+	_, err := tx.ExecContext(
+		ctx,
+		`INSERT INTO order_authorizations (
+			id, task_id, execution_id, authorization_version, candidate_key,
+			task_content_sha256, task_version, review_id, review_version,
+			user_id, device_id, claim_generation, original_sku, quantity,
+			candidate_sku_text, candidate_price_text, card_signature,
+			detail_signature, detail_evidence_sha256,
+			specification_evidence_sha256, status,
+			supersedes_authorization_id, created_by_user_id, created_at
+		) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,
+			?, ?, ?, ?)`,
+		authorization.ID,
+		authorization.TaskID,
+		authorization.ExecutionID,
+		authorization.AuthorizationVersion,
+		authorization.CandidateKey,
+		authorization.TaskContentSHA256,
+		authorization.TaskVersion,
+		authorization.ReviewID,
+		authorization.ReviewVersion,
+		authorization.UserID,
+		authorization.DeviceID,
+		authorization.ClaimGeneration,
+		authorization.OriginalSKU,
+		authorization.Quantity,
+		authorization.CandidateSKUText,
+		authorization.CandidatePriceText,
+		authorization.CardSignature,
+		authorization.DetailSignature,
+		authorization.DetailEvidenceSHA256,
+		authorization.SpecificationEvidenceSHA256,
+		authorization.Status,
+		nullableString(authorization.SupersedesAuthorizationID),
+		authorization.CreatedByUserID,
+		formatTimestamp(authorization.CreatedAt),
+	)
+	if err != nil {
+		return repositoryFailure(err)
+	}
+	return nil
+}
+
+func getOrderAuthorization(
+	ctx context.Context,
+	queryer queryRower,
+	authorizationID string,
+) (domain.OrderAuthorization, error) {
+	authorization, err := scanOrderAuthorization(queryer.QueryRowContext(
+		ctx,
+		orderAuthorizationSelect+` WHERE id = ?`,
+		authorizationID,
+	))
+	if errors.Is(err, sql.ErrNoRows) {
+		return domain.OrderAuthorization{}, usecase.ErrRepositoryNotFound
+	}
+	if err != nil {
+		return domain.OrderAuthorization{}, repositoryFailure(err)
+	}
+	return authorization, nil
+}
+
+func listOrderAuthorizations(
+	ctx context.Context,
+	queryer queryer,
+	taskID string,
+) ([]domain.OrderAuthorization, error) {
+	rows, err := queryer.QueryContext(
+		ctx,
+		orderAuthorizationSelect+
+			` WHERE task_id = ?
+			ORDER BY authorization_version ASC`,
+		taskID,
+	)
+	if err != nil {
+		return nil, repositoryFailure(err)
+	}
+	defer rows.Close()
+	result := make([]domain.OrderAuthorization, 0)
+	for rows.Next() {
+		authorization, err := scanOrderAuthorization(rows)
+		if err != nil {
+			return nil, repositoryFailure(err)
+		}
+		result = append(result, authorization)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, repositoryFailure(err)
+	}
+	return result, nil
+}
+
+func scanOrderAuthorization(
+	scanner rowScanner,
+) (domain.OrderAuthorization, error) {
+	var authorization domain.OrderAuthorization
+	var supersedes, deliveredAt, acknowledgedAt sql.NullString
+	var executionStartedAt, consumedAt, failedAt, revokedAt sql.NullString
+	var failureCode, failureMessage sql.NullString
+	var createdAt string
+	err := scanner.Scan(
+		&authorization.ID,
+		&authorization.TaskID,
+		&authorization.ExecutionID,
+		&authorization.AuthorizationVersion,
+		&authorization.CandidateKey,
+		&authorization.TaskContentSHA256,
+		&authorization.TaskVersion,
+		&authorization.ReviewID,
+		&authorization.ReviewVersion,
+		&authorization.UserID,
+		&authorization.DeviceID,
+		&authorization.ClaimGeneration,
+		&authorization.OriginalSKU,
+		&authorization.Quantity,
+		&authorization.CandidateSKUText,
+		&authorization.CandidatePriceText,
+		&authorization.CardSignature,
+		&authorization.DetailSignature,
+		&authorization.DetailEvidenceSHA256,
+		&authorization.SpecificationEvidenceSHA256,
+		&authorization.Status,
+		&supersedes,
+		&authorization.CreatedByUserID,
+		&createdAt,
+		&deliveredAt,
+		&acknowledgedAt,
+		&executionStartedAt,
+		&consumedAt,
+		&failedAt,
+		&revokedAt,
+		&failureCode,
+		&failureMessage,
+	)
+	if err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if supersedes.Valid {
+		authorization.SupersedesAuthorizationID = &supersedes.String
+	}
+	authorization.CreatedAt, err = parseTimestamp(createdAt)
+	if err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if authorization.DeliveredAt, err = parseNullableTimestamp(deliveredAt); err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if authorization.AcknowledgedAt, err = parseNullableTimestamp(acknowledgedAt); err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if authorization.ExecutionStartedAt, err = parseNullableTimestamp(executionStartedAt); err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if authorization.ConsumedAt, err = parseNullableTimestamp(consumedAt); err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if authorization.FailedAt, err = parseNullableTimestamp(failedAt); err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if authorization.RevokedAt, err = parseNullableTimestamp(revokedAt); err != nil {
+		return domain.OrderAuthorization{}, err
+	}
+	if failureCode.Valid {
+		authorization.FailureCode = &failureCode.String
+	}
+	if failureMessage.Valid {
+		authorization.FailureMessage = &failureMessage.String
+	}
+	return authorization, nil
+}
+
+const orderAuthorizationSelect = `SELECT
+	id, task_id, execution_id, authorization_version, candidate_key,
+	task_content_sha256, task_version, review_id, review_version,
+	user_id, device_id, claim_generation, original_sku, quantity,
+	candidate_sku_text, candidate_price_text, card_signature,
+	detail_signature, detail_evidence_sha256,
+	specification_evidence_sha256, status,
+	supersedes_authorization_id, created_by_user_id, created_at,
+	delivered_at, acknowledged_at, execution_started_at, consumed_at,
+	failed_at, revoked_at, failure_code, failure_message
+FROM order_authorizations`
+
+const localAdminSubject = "local-admin"
+
+var _ usecase.OrderAuthorizationRepository = (*Store)(nil)
diff --git a/backend-api/internal/repository/sqlite/task_repository.go b/backend-api/internal/repository/sqlite/task_repository.go
index 21b9a9a..37e6072 100644
--- a/backend-api/internal/repository/sqlite/task_repository.go
+++ b/backend-api/internal/repository/sqlite/task_repository.go
@@ -320,12 +320,17 @@ func (s *Store) GetTaskDetail(
 			return domain.TaskDetail{}, err
 		}
 	}
+	orderAuthorizations, err := listOrderAuthorizations(ctx, tx, taskID)
+	if err != nil {
+		return domain.TaskDetail{}, err
+	}
 	detail := domain.TaskDetail{
-		Task:      task,
-		Asset:     asset,
-		Execution: executionPointer,
-		Events:    events,
-		Report:    report,
+		Task:                task,
+		Asset:               asset,
+		Execution:           executionPointer,
+		Events:              events,
+		Report:              report,
+		OrderAuthorizations: orderAuthorizations,
 	}
 	if err := tx.Commit(); err != nil {
 		return domain.TaskDetail{}, repositoryFailure(err)
diff --git a/backend-api/internal/transport/httpapi/admin_handlers.go b/backend-api/internal/transport/httpapi/admin_handlers.go
index a00438b..4762c0d 100644
--- a/backend-api/internal/transport/httpapi/admin_handlers.go
+++ b/backend-api/internal/transport/httpapi/admin_handlers.go
@@ -24,13 +24,15 @@ const (
 )
 
 type AdminServices struct {
-	Assets  *usecase.AssetService
-	Tasks   *usecase.TaskService
-	Results *usecase.ExecutionResultService
+	Assets         *usecase.AssetService
+	Tasks          *usecase.TaskService
+	Results        *usecase.ExecutionResultService
+	Authorizations *usecase.OrderAuthorizationService
 }
 
 func (s AdminServices) validate() error {
-	if s.Assets == nil || s.Tasks == nil || s.Results == nil {
+	if s.Assets == nil || s.Tasks == nil || s.Results == nil ||
+		s.Authorizations == nil {
 		return errors.New("admin services are required")
 	}
 	return nil
@@ -55,6 +57,10 @@ func registerAdminAPI(routes gin.IRoutes, services AdminServices) error {
 		handler.evidenceContent,
 	)
 	routes.POST("/api/v1/tasks/:id/cancel", handler.cancelTask)
+	routes.POST(
+		"/api/v1/tasks/:id/order-authorizations",
+		handler.createOrderAuthorization,
+	)
 	return nil
 }
 
@@ -371,13 +377,116 @@ func (h *adminHandlers) taskDetail(ctx *gin.Context) {
 		"claim":               claim,
 		"execution":           execution,
 		"execution_report":    executionReport,
-		"events":              events,
+		"order_authorizations": orderAuthorizationResponses(
+			detail.OrderAuthorizations,
+		),
+		"events": events,
 		"assets": []gin.H{
 			assetResponse(detail.Asset),
 		},
 	})
 }
 
+func (h *adminHandlers) createOrderAuthorization(ctx *gin.Context) {
+	var request struct {
+		ExecutionID               string                                `json:"execution_id"`
+		TaskContentSHA256         string                                `json:"task_content_sha256"`
+		ExpectedTaskVersion       int64                                 `json:"expected_task_version"`
+		CandidateKey              string                                `json:"candidate_key"`
+		ReasonSchemaVersion       int                                   `json:"reason_schema_version"`
+		PrimaryReasonCode         string                                `json:"primary_reason_code"`
+		Note                      string                                `json:"note"`
+		SupersedesAuthorizationID *string                               `json:"supersedes_authorization_id"`
+		Items                     []usecase.OrderAuthorizationItemInput `json:"items"`
+	}
+	if err := decodeJSON(ctx, &request); err != nil {
+		writePublicError(
+			ctx,
+			http.StatusBadRequest,
+			"INVALID_JSON",
+			"request body must be valid JSON",
+			false,
+			gin.H{},
+		)
+		return
+	}
+	result, err := h.services.Authorizations.Create(
+		ctx.Request.Context(),
+		usecase.CreateOrderAuthorizationCommand{
+			ActorUserID:               adminActorUserID(ctx),
+			TaskID:                    ctx.Param("id"),
+			IdempotencyKey:            ctx.GetHeader("Idempotency-Key"),
+			ExecutionID:               request.ExecutionID,
+			TaskContentSHA256:         request.TaskContentSHA256,
+			ExpectedTaskVersion:       request.ExpectedTaskVersion,
+			CandidateKey:              request.CandidateKey,
+			ReasonSchemaVersion:       request.ReasonSchemaVersion,
+			PrimaryReasonCode:         request.PrimaryReasonCode,
+			Note:                      request.Note,
+			SupersedesAuthorizationID: request.SupersedesAuthorizationID,
+			Items:                     request.Items,
+		},
+	)
+	if err != nil {
+		writeUsecaseError(ctx, err)
+		return
+	}
+	ctx.Header("Cache-Control", "no-store")
+	ctx.JSON(http.StatusCreated, gin.H{
+		"authorization": orderAuthorizationResponse(result.Authorization),
+		"replayed":      result.Replayed,
+	})
+}
+
+func orderAuthorizationResponses(
+	authorizations []domain.OrderAuthorization,
+) []gin.H {
+	result := make([]gin.H, 0, len(authorizations))
+	for _, authorization := range authorizations {
+		result = append(result, orderAuthorizationResponse(authorization))
+	}
+	return result
+}
+
+func orderAuthorizationResponse(
+	authorization domain.OrderAuthorization,
+) gin.H {
+	return gin.H{
+		"id":                            authorization.ID,
+		"task_id":                       authorization.TaskID,
+		"execution_id":                  authorization.ExecutionID,
+		"authorization_version":         authorization.AuthorizationVersion,
+		"candidate_key":                 authorization.CandidateKey,
+		"task_content_sha256":           authorization.TaskContentSHA256,
+		"task_version":                  authorization.TaskVersion,
+		"review_id":                     authorization.ReviewID,
+		"review_version":                authorization.ReviewVersion,
+		"user_id":                       authorization.UserID,
+		"device_id":                     authorization.DeviceID,
+		"claim_generation":              authorization.ClaimGeneration,
+		"original_sku":                  authorization.OriginalSKU,
+		"quantity":                      authorization.Quantity,
+		"candidate_sku_text":            authorization.CandidateSKUText,
+		"candidate_price_text":          authorization.CandidatePriceText,
+		"card_signature":                authorization.CardSignature,
+		"detail_signature":              authorization.DetailSignature,
+		"detail_evidence_sha256":        authorization.DetailEvidenceSHA256,
+		"specification_evidence_sha256": authorization.SpecificationEvidenceSHA256,
+		"status":                        authorization.Status,
+		"supersedes_authorization_id":   authorization.SupersedesAuthorizationID,
+		"created_by_user_id":            authorization.CreatedByUserID,
+		"created_at":                    formatTime(authorization.CreatedAt),
+		"delivered_at":                  formatOptionalTime(authorization.DeliveredAt),
+		"acknowledged_at":               formatOptionalTime(authorization.AcknowledgedAt),
+		"execution_started_at":          formatOptionalTime(authorization.ExecutionStartedAt),
+		"consumed_at":                   formatOptionalTime(authorization.ConsumedAt),
+		"failed_at":                     formatOptionalTime(authorization.FailedAt),
+		"revoked_at":                    formatOptionalTime(authorization.RevokedAt),
+		"failure_code":                  authorization.FailureCode,
+		"failure_message":               authorization.FailureMessage,
+	}
+}
+
 func executionReportResponse(report *domain.ExecutionReport) gin.H {
 	events := make([]gin.H, 0, len(report.Events))
 	for _, event := range report.Events {
diff --git a/backend-api/internal/transport/httpapi/admin_handlers_test.go b/backend-api/internal/transport/httpapi/admin_handlers_test.go
index a6fdb4c..4766499 100644
--- a/backend-api/internal/transport/httpapi/admin_handlers_test.go
+++ b/backend-api/internal/transport/httpapi/admin_handlers_test.go
@@ -3,7 +3,9 @@ package httpapi
 import (
 	"bytes"
 	"context"
+	"database/sql"
 	"encoding/json"
+	"fmt"
 	"image"
 	"image/color"
 	"image/jpeg"
@@ -288,6 +290,131 @@ func TestAdminAPIAssetAndTaskLifecycle(t *testing.T) {
 	}
 }
 
+func TestAdminOrderAuthorizationIsIdempotentAndRevisioned(t *testing.T) {
+	fixture := newAdminIntegrationFixture(t)
+	taskID, executionID, taskHash, firstKey, secondKey :=
+		seedAdminAuthorizationTask(t, fixture)
+	payload := fmt.Sprintf(
+		`{"execution_id":%q,"task_content_sha256":%q,"expected_task_version":2,"candidate_key":%q,"reason_schema_version":1,"primary_reason_code":"SELECTED_BEST_MATCH","note":"","supersedes_authorization_id":null,"items":[{"candidate_key":%q,"label":"ACCEPT","primary_reason_code":"SKU_MATCH","reason_codes":["SKU_MATCH"],"note":""},{"candidate_key":%q,"label":"REJECT","primary_reason_code":"NOT_BEST_MATCH","reason_codes":["NOT_BEST_MATCH"],"note":""}]}`,
+		executionID,
+		taskHash,
+		firstKey,
+		firstKey,
+		secondKey,
+	)
+	created := performAdminRequest(
+		t,
+		fixture.router,
+		http.MethodPost,
+		"/api/v1/tasks/"+taskID+"/order-authorizations",
+		"application/json",
+		strings.NewReader(payload),
+		"authorization-1",
+	)
+	if created.Code != http.StatusCreated {
+		t.Fatalf(
+			"authorization status/body = %d / %s",
+			created.Code,
+			created.Body.String(),
+		)
+	}
+	var createdBody struct {
+		Authorization struct {
+			ID      string `json:"id"`
+			Status  string `json:"status"`
+			Version int    `json:"authorization_version"`
+		} `json:"authorization"`
+		Replayed bool `json:"replayed"`
+	}
+	decodeResponse(t, created, &createdBody)
+	if createdBody.Authorization.ID == "" ||
+		createdBody.Authorization.Status != "PENDING_DELIVERY" ||
+		createdBody.Authorization.Version != 1 ||
+		createdBody.Replayed {
+		t.Fatalf("authorization response = %+v", createdBody)
+	}
+
+	replayed := performAdminRequest(
+		t,
+		fixture.router,
+		http.MethodPost,
+		"/api/v1/tasks/"+taskID+"/order-authorizations",
+		"application/json",
+		strings.NewReader(payload),
+		"authorization-1",
+	)
+	requireAdminStatus(t, replayed, http.StatusCreated)
+	if !strings.Contains(replayed.Body.String(), `"replayed":true`) ||
+		!strings.Contains(
+			replayed.Body.String(),
+			createdBody.Authorization.ID,
+		) {
+		t.Fatalf("authorization replay = %s", replayed.Body.String())
+	}
+
+	stale := performAdminRequest(
+		t,
+		fixture.router,
+		http.MethodPost,
+		"/api/v1/tasks/"+taskID+"/order-authorizations",
+		"application/json",
+		strings.NewReader(payload),
+		"authorization-stale",
+	)
+	requireAdminStatus(t, stale, http.StatusConflict)
+
+	revisedPayload := fmt.Sprintf(
+		`{"execution_id":%q,"task_content_sha256":%q,"expected_task_version":3,"candidate_key":%q,"reason_schema_version":1,"primary_reason_code":"SELECTED_BEST_MATCH","note":"","supersedes_authorization_id":%q,"items":[{"candidate_key":%q,"label":"REJECT","primary_reason_code":"NOT_BEST_MATCH","reason_codes":["NOT_BEST_MATCH"],"note":""},{"candidate_key":%q,"label":"ACCEPT","primary_reason_code":"IMAGE_MATCH","reason_codes":["IMAGE_MATCH"],"note":""}]}`,
+		executionID,
+		taskHash,
+		secondKey,
+		createdBody.Authorization.ID,
+		firstKey,
+		secondKey,
+	)
+	revised := performAdminRequest(
+		t,
+		fixture.router,
+		http.MethodPost,
+		"/api/v1/tasks/"+taskID+"/order-authorizations",
+		"application/json",
+		strings.NewReader(revisedPayload),
+		"authorization-2",
+	)
+	requireAdminStatus(t, revised, http.StatusCreated)
+	if !strings.Contains(revised.Body.String(), `"authorization_version":2`) ||
+		!strings.Contains(revised.Body.String(), `"candidate_key":"`+secondKey+`"`) {
+		t.Fatalf("revised authorization = %s", revised.Body.String())
+	}
+
+	detail := performAdminRequest(
+		t,
+		fixture.router,
+		http.MethodGet,
+		"/api/v1/tasks/"+taskID,
+		"",
+		nil,
+		"",
+	)
+	requireAdminStatus(t, detail, http.StatusOK)
+	var detailBody map[string]any
+	decodeResponse(t, detail, &detailBody)
+	authorizations, _ := detailBody["order_authorizations"].([]any)
+	if detailBody["version"] != float64(4) || len(authorizations) != 2 ||
+		!strings.Contains(detail.Body.String(), `"status":"SUPERSEDED"`) ||
+		!strings.Contains(detail.Body.String(), `"review_version":2`) {
+		t.Fatalf("authorization detail = %#v", detailBody)
+	}
+
+	runner, err := migration.New(fixture.db)
+	if err != nil {
+		t.Fatalf("migration.New() error = %v", err)
+	}
+	if err := runner.Down(context.Background()); err == nil {
+		t.Fatal("order authorization migration down succeeded with retained data")
+	}
+}
+
 func TestAdminRoutesRejectRequestsWithoutAdminSession(t *testing.T) {
 	router := newAdminIntegrationRouter(t)
 	request := httptest.NewRequest(http.MethodGet, "/api/v1/tasks", nil)
@@ -307,6 +434,201 @@ func TestAdminRoutesRejectRequestsWithoutAdminSession(t *testing.T) {
 	}
 }
 
+func seedAdminAuthorizationTask(
+	t *testing.T,
+	fixture *adminIntegrationFixture,
+) (taskID string, executionID string, taskHash string, firstKey string, secondKey string) {
+	t.Helper()
+	imageBody, imageContentType := referenceUpload(t, "authorization-asset")
+	assetResponse := performAdminRequest(
+		t,
+		fixture.router,
+		http.MethodPost,
+		"/api/v1/assets",
+		imageContentType,
+		imageBody,
+		"authorization-asset",
+	)
+	requireAdminStatus(t, assetResponse, http.StatusCreated)
+	var asset struct {
+		ID string `json:"id"`
+	}
+	decodeResponse(t, assetResponse, &asset)
+	taskResponse := performAdminRequest(
+		t,
+		fixture.router,
+		http.MethodPost,
+		"/api/v1/tasks",
+		"application/json",
+		strings.NewReader(
+			`{"title":"后台授权测试商品","sku":"BLACK-L","description":"","image_asset_id":"`+
+				asset.ID+`","quantity":2,"max_budget":"100.00"}`,
+		),
+		"authorization-task",
+	)
+	requireAdminStatus(t, taskResponse, http.StatusCreated)
+	var task struct {
+		ID string `json:"id"`
+	}
+	decodeResponse(t, taskResponse, &task)
+
+	const (
+		buyerID  = "00000000-0000-4000-8000-000000000901"
+		deviceID = "00000000-0000-4000-8000-000000000902"
+	)
+	executionID = "00000000-0000-4000-8000-000000000903"
+	now := time.Now().UTC()
+	nowText := now.Format(time.RFC3339Nano)
+	expiryText := now.Add(time.Hour).Format(time.RFC3339Nano)
+	if _, err := fixture.db.Exec(
+		`INSERT INTO users (
+			id, username, password_hash, role, is_active, created_at, updated_at
+		) VALUES (?, 'buyer-auth-test', 'test-only-hash', 'BUYER', 1, ?, ?)`,
+		buyerID,
+		nowText,
+		nowText,
+	); err != nil {
+		t.Fatalf("seed authorization buyer: %v", err)
+	}
+	if _, err := fixture.db.Exec(
+		`INSERT INTO devices (
+			id, name, token_hash, bound_user_id, app_version,
+			android_version, pdd_version, last_seen_at, is_enabled,
+			created_at, updated_at, accessibility_enabled, pdd_installed,
+			readiness_reported_at
+		) VALUES (?, 'auth-device', ?, ?, 'test', '16', '8.17.0', ?, 1,
+			?, ?, 1, 1, ?)`,
+		deviceID,
+		strings.Repeat("9", 64),
+		buyerID,
+		nowText,
+		nowText,
+		nowText,
+		nowText,
+	); err != nil {
+		t.Fatalf("seed authorization device: %v", err)
+	}
+	if _, err := fixture.db.Exec(
+		`UPDATE purchase_tasks SET
+			status = 'WAITING_CONFIRMATION', version = 2,
+			claimed_by_user_id = ?, claimed_by_device_id = ?,
+			claim_generation = 1, claim_token_hash = ?,
+			claim_issued_at = ?, claim_expires_at = ?, updated_at = ?
+		WHERE id = ?`,
+		buyerID,
+		deviceID,
+		strings.Repeat("8", 64),
+		nowText,
+		expiryText,
+		nowText,
+		task.ID,
+	); err != nil {
+		t.Fatalf("seed authorization task: %v", err)
+	}
+	if _, err := fixture.db.Exec(
+		`INSERT INTO task_executions (
+			id, task_id, attempt_no, claim_generation, user_id, device_id,
+			current_step, last_heartbeat_at, order_submitted, started_at
+		) VALUES (?, ?, 1, 1, ?, ?, 'WAITING_ADMIN_CONFIRMATION', ?, 0, ?)`,
+		executionID,
+		task.ID,
+		buyerID,
+		deviceID,
+		nowText,
+		nowText,
+	); err != nil {
+		t.Fatalf("seed authorization execution: %v", err)
+	}
+	store, err := repository.New(fixture.db)
+	if err != nil {
+		t.Fatalf("repository.New() error = %v", err)
+	}
+	detail, err := store.GetTaskDetail(
+		context.Background(),
+		localAdminSubject,
+		task.ID,
+	)
+	if err != nil {
+		t.Fatalf("GetTaskDetail() error = %v", err)
+	}
+	taskHash = usecase.TaskContentSHA256(detail.Task)
+	firstKey = strings.Repeat("a", 64)
+	secondKey = strings.Repeat("b", 64)
+	if _, err := fixture.db.Exec(
+		`INSERT INTO candidate_search_runs (
+			execution_id, task_id, task_content_sha256, execution_mode,
+			search_query, started_at, received_at, observation_count,
+			collection_complete, received_after_execution_expiry
+		) VALUES (?, ?, ?, 'MANUAL_FIRST', 'PDD_IMAGE_SEARCH', ?, ?, 2, 1, 0)`,
+		executionID,
+		task.ID,
+		taskHash,
+		nowText,
+		nowText,
+	); err != nil {
+		t.Fatalf("seed authorization search run: %v", err)
+	}
+	if _, err := fixture.db.Exec(
+		`INSERT INTO candidate_observations (
+			execution_id, task_id, ordinal, title, sku_text, price_text,
+			product_url, image_url, evidence_asset_ids_json,
+			collection_status, observed_at
+		) VALUES
+			(?, ?, 1, '候选一', 'BLACK-L', '20.00', '', '', '[]', 'COMPLETE', ?),
+			(?, ?, 2, '候选二', 'BLACK-L', '22.00', '', '', '[]', 'COMPLETE', ?)`,
+		executionID,
+		task.ID,
+		nowText,
+		executionID,
+		task.ID,
+		nowText,
+	); err != nil {
+		t.Fatalf("seed authorization observations: %v", err)
+	}
+	if _, err := fixture.db.Exec(
+		`INSERT INTO candidate_observation_identities (
+			candidate_key, execution_id, candidate_ordinal, card_signature,
+			detail_signature, detail_evidence_sha256,
+			specification_evidence_sha256, identity_version, created_at
+		) VALUES
+			(?, ?, 1, ?, ?, ?, ?, 1, ?),
+			(?, ?, 2, ?, ?, ?, ?, 1, ?)`,
+		firstKey,
+		executionID,
+		strings.Repeat("c", 64),
+		strings.Repeat("d", 64),
+		strings.Repeat("e", 64),
+		strings.Repeat("f", 64),
+		nowText,
+		secondKey,
+		executionID,
+		strings.Repeat("1", 64),
+		strings.Repeat("2", 64),
+		strings.Repeat("3", 64),
+		strings.Repeat("4", 64),
+		nowText,
+	); err != nil {
+		t.Fatalf("seed authorization identities: %v", err)
+	}
+	return task.ID, executionID, taskHash, firstKey, secondKey
+}
+
+func requireAdminStatus(
+	t *testing.T,
+	response *httptest.ResponseRecorder,
+	want int,
+) {
+	t.Helper()
+	if response.Code != want {
+		t.Fatalf(
+			"status/body = %d / %s, want %d",
+			response.Code,
+			response.Body.String(),
+			want,
+		)
+	}
+}
+
 func TestAdminAssetUploadRequiresIdempotencyKey(t *testing.T) {
 	router := newAdminIntegrationRouter(t)
 	imageBody, imageContentType := referenceUpload(t, "missing-key")
@@ -337,6 +659,16 @@ type emptyAdminWeb struct{}
 func (emptyAdminWeb) RegisterProtected(gin.IRoutes) {}
 
 func newAdminIntegrationRouter(t *testing.T) http.Handler {
+	t.Helper()
+	return newAdminIntegrationFixture(t).router
+}
+
+type adminIntegrationFixture struct {
+	router http.Handler
+	db     *sql.DB
+}
+
+func newAdminIntegrationFixture(t *testing.T) *adminIntegrationFixture {
 	t.Helper()
 	ctx := context.Background()
 	db, err := database.Open(ctx, filepath.Join(t.TempDir(), "admin.db"))
@@ -385,8 +717,21 @@ func newAdminIntegrationRouter(t *testing.T) http.Handler {
 	if err != nil {
 		t.Fatalf("usecase.NewExecutionResultService() error = %v", err)
 	}
+	authorizations, err := usecase.NewOrderAuthorizationService(
+		repositories,
+		clock,
+		ids,
+	)
+	if err != nil {
+		t.Fatalf("usecase.NewOrderAuthorizationService() error = %v", err)
+	}
 	registrar, err := NewAdminRouteRegistrar(
-		AdminServices{Assets: assets, Tasks: tasks, Results: results},
+		AdminServices{
+			Assets:         assets,
+			Tasks:          tasks,
+			Results:        results,
+			Authorizations: authorizations,
+		},
 		emptyAdminWeb{},
 	)
 	if err != nil {
@@ -404,7 +749,7 @@ func newAdminIntegrationRouter(t *testing.T) http.Handler {
 	if err != nil {
 		t.Fatalf("NewRouter() error = %v", err)
 	}
-	return router
+	return &adminIntegrationFixture{router: router, db: db}
 }
 
 func referenceUpload(t *testing.T, key string) (io.Reader, string) {
diff --git a/backend-api/internal/transport/httpapi/device_handlers_test.go b/backend-api/internal/transport/httpapi/device_handlers_test.go
index deae26a..0737fde 100644
--- a/backend-api/internal/transport/httpapi/device_handlers_test.go
+++ b/backend-api/internal/transport/httpapi/device_handlers_test.go
@@ -629,6 +629,24 @@ func TestDeviceExecutionResultsAreIdempotentAndAuditable(t *testing.T) {
 	if !strings.Contains(candidateReplay.Body.String(), `"replayed":true`) {
 		t.Fatalf("candidate replay response = %s", candidateReplay.Body.String())
 	}
+	detail, err = fixture.tasks.Get(context.Background(), "local-admin", taskID)
+	if err != nil {
+		t.Fatalf("get task after candidate upload: %v", err)
+	}
+	readyEvents := 0
+	for _, event := range detail.Events {
+		if event.Type == "CANDIDATES_READY" {
+			readyEvents++
+		}
+	}
+	if detail.Task.Status != domain.TaskStatusWaitingConfirmation ||
+		readyEvents != 1 {
+		t.Fatalf(
+			"candidate upload status/events = %s/%+v",
+			detail.Task.Status,
+			detail.Events,
+		)
+	}
 
 	humanReviewPayload := fmt.Sprintf(
 		`{"execution_id":%q,"claim_generation":%d,"task_content_sha256":%q,"reason_schema_version":1,"outcome":"CANDIDATE_ACCEPTED","selected_candidate_ordinal":1,"primary_reason_code":"SELECTED_BEST_MATCH","note":"","items":[{"candidate_ordinal":1,"label":"ACCEPT","primary_reason_code":"SKU_MATCH","reason_codes":["SKU_MATCH"],"note":""}]}`,
@@ -696,7 +714,7 @@ func TestDeviceExecutionResultsAreIdempotentAndAuditable(t *testing.T) {
 		t.Fatalf("migration.New() after review error = %v", err)
 	}
 	if err := runner.Down(context.Background()); err == nil {
-		t.Fatal("candidate identity migration down succeeded with retained data")
+		t.Fatal("order workflow migration down succeeded with retained data")
 	}
 
 	completePayload := fmt.Sprintf(
diff --git a/backend-api/internal/transport/webui/handler.go b/backend-api/internal/transport/webui/handler.go
index bffb81a..b8e313e 100644
--- a/backend-api/internal/transport/webui/handler.go
+++ b/backend-api/internal/transport/webui/handler.go
@@ -66,6 +66,11 @@ func (h *Handler) RegisterProtected(routes gin.IRoutes) {
 	routes.POST("/tasks", SecurityHeaders(), h.CreateTask)
 	routes.GET("/tasks/:id", SecurityHeaders(), h.TaskDetail)
 	routes.POST("/tasks/:id/cancel", SecurityHeaders(), h.CancelTask)
+	routes.POST(
+		"/tasks/:id/order-authorizations",
+		SecurityHeaders(),
+		h.AuthorizeOrder,
+	)
 }
 
 func SecurityHeaders() gin.HandlerFunc {
@@ -264,20 +269,85 @@ func (h *Handler) TaskDetail(ctx *gin.Context) {
 		h.renderError(ctx, http.StatusInternalServerError, "页面暂时无法打开", "请稍后重试。")
 		return
 	}
+	authorizationKey, keyErr := newToken()
+	if keyErr != nil {
+		h.renderError(ctx, http.StatusInternalServerError, "页面暂时无法打开", "请稍后重试。")
+		return
+	}
 	page := taskDetailPage{
 		Page: pageView{
 			Title:        "任务详情",
 			TasksCurrent: true,
 			CSRFToken:    token,
 		},
-		Task:      taskDetailViewFrom(task),
-		CSRFToken: token,
-		CancelKey: cancelKey,
-		Notice:    detailNotice(ctx.Query("notice")),
+		Task:             taskDetailViewFrom(task),
+		CSRFToken:        token,
+		CancelKey:        cancelKey,
+		AuthorizationKey: authorizationKey,
+		Notice:           detailNotice(ctx.Query("notice")),
 	}
 	h.render(ctx, http.StatusOK, "task-detail", page)
 }
 
+func (h *Handler) AuthorizeOrder(ctx *gin.Context) {
+	if !validCSRF(ctx) {
+		h.renderError(
+			ctx,
+			http.StatusForbidden,
+			"请求已失效",
+			"请返回任务详情后重新操作。",
+		)
+		return
+	}
+	taskID := strings.TrimSpace(ctx.Param("id"))
+	authorizationKey := strings.TrimSpace(
+		ctx.PostForm("authorization_key"),
+	)
+	expectedVersion, versionErr := strconv.ParseInt(
+		strings.TrimSpace(ctx.PostForm("expected_task_version")),
+		10,
+		64,
+	)
+	if !validToken(authorizationKey) || versionErr != nil ||
+		expectedVersion < 1 {
+		h.renderError(
+			ctx,
+			http.StatusForbidden,
+			"请求已失效",
+			"请返回任务详情后重新操作。",
+		)
+		return
+	}
+	_, err := h.service.AuthorizeOrder(
+		ctx.Request.Context(),
+		AuthorizeOrderInput{
+			TaskID:                    taskID,
+			IdempotencyKey:            authorizationKey,
+			ExpectedTaskVersion:       expectedVersion,
+			CandidateKey:              strings.TrimSpace(ctx.PostForm("candidate_key")),
+			SelectedReasonCode:        strings.TrimSpace(ctx.PostForm("selected_reason_code")),
+			RejectedReasonCode:        strings.TrimSpace(ctx.PostForm("rejected_reason_code")),
+			Note:                      strings.TrimSpace(ctx.PostForm("authorization_note")),
+			SupersedesAuthorizationID: strings.TrimSpace(ctx.PostForm("supersedes_authorization_id")),
+		},
+	)
+	if err != nil {
+		if errors.Is(err, ErrConflict) || errors.Is(err, ErrValidation) {
+			ctx.Redirect(
+				http.StatusSeeOther,
+				"/tasks/"+pathEscape(taskID)+"?notice=authorization-conflict",
+			)
+			return
+		}
+		h.renderServiceError(ctx, err, "授权失败，请稍后重试。")
+		return
+	}
+	ctx.Redirect(
+		http.StatusSeeOther,
+		"/tasks/"+pathEscape(taskID)+"?notice=authorization-created",
+	)
+}
+
 func (h *Handler) CancelTask(ctx *gin.Context) {
 	if !validCSRF(ctx) {
 		h.renderError(
@@ -652,6 +722,10 @@ func detailNotice(value string) string {
 		return "已请求设备安全停止；设备确认前任务仍保持当前执行状态。"
 	case "cancel-conflict":
 		return "任务状态已变化，当前不能取消。"
+	case "authorization-created":
+		return "候选已确认，待投递下单授权已创建。"
+	case "authorization-conflict":
+		return "候选或任务状态已变化，请检查最新证据后重新授权。"
 	default:
 		return ""
 	}
@@ -742,29 +816,35 @@ type newTaskPageView struct {
 }
 
 type taskDetailView struct {
-	ID                string
-	Title             string
-	SKU               string
-	Description       string
-	Quantity          int64
-	MaxBudget         string
-	Status            string
-	StatusLabel       string
-	StatusClass       string
-	ReferenceAssetID  string
-	CreatedAt         time.Time
-	UpdatedAt         time.Time
-	CanCancel         bool
-	CancelRequiresAck bool
-	ExecutionReport   *ExecutionReport
+	ID                    string
+	Title                 string
+	SKU                   string
+	Description           string
+	Quantity              int64
+	MaxBudget             string
+	Status                string
+	Version               int64
+	StatusLabel           string
+	StatusClass           string
+	ReferenceAssetID      string
+	CreatedAt             time.Time
+	UpdatedAt             time.Time
+	CanCancel             bool
+	CancelRequiresAck     bool
+	ExecutionReport       *ExecutionReport
+	Candidates            []AuthorizationCandidate
+	OrderAuthorizations   []OrderAuthorization
+	CanAuthorizeOrder     bool
+	ActiveAuthorizationID string
 }
 
 type taskDetailPage struct {
-	Page      pageView
-	Task      taskDetailView
-	CSRFToken string
-	CancelKey string
-	Notice    string
+	Page             pageView
+	Task             taskDetailView
+	CSRFToken        string
+	CancelKey        string
+	AuthorizationKey string
+	Notice           string
 }
 
 type errorPage struct {
@@ -774,6 +854,17 @@ type errorPage struct {
 }
 
 func taskDetailViewFrom(task Task) taskDetailView {
+	activeAuthorizationID := ""
+	canAuthorizeOrder := task.Status == "WAITING_CONFIRMATION" &&
+		len(task.Candidates) > 0
+	for _, authorization := range task.OrderAuthorizations {
+		switch authorization.Status {
+		case "PENDING_DELIVERY":
+			activeAuthorizationID = authorization.ID
+		case "DELIVERED", "ACKNOWLEDGED", "EXECUTING":
+			canAuthorizeOrder = false
+		}
+	}
 	return taskDetailView{
 		ID:               task.ID,
 		Title:            task.Title,
@@ -782,6 +873,7 @@ func taskDetailViewFrom(task Task) taskDetailView {
 		Quantity:         task.Quantity,
 		MaxBudget:        task.MaxBudget,
 		Status:           task.Status,
+		Version:          task.Version,
 		StatusLabel:      statusLabel(task.Status),
 		StatusClass:      statusClass(task.Status),
 		ReferenceAssetID: task.ReferenceAssetID,
@@ -790,7 +882,11 @@ func taskDetailViewFrom(task Task) taskDetailView {
 		CanCancel:        canCancelTaskStatus(task.Status),
 		CancelRequiresAck: task.Status == "RUNNING" ||
 			task.Status == "WAITING_CONFIRMATION",
-		ExecutionReport: task.ExecutionReport,
+		ExecutionReport:       task.ExecutionReport,
+		Candidates:            task.Candidates,
+		OrderAuthorizations:   task.OrderAuthorizations,
+		CanAuthorizeOrder:     canAuthorizeOrder,
+		ActiveAuthorizationID: activeAuthorizationID,
 	}
 }
 
diff --git a/backend-api/internal/transport/webui/handler_test.go b/backend-api/internal/transport/webui/handler_test.go
index a5772c1..296f996 100644
--- a/backend-api/internal/transport/webui/handler_test.go
+++ b/backend-api/internal/transport/webui/handler_test.go
@@ -509,6 +509,124 @@ func TestTaskDetailDoesNotLeakForbiddenResource(t *testing.T) {
 	}
 }
 
+func TestTaskDetailAuthorizesOneCandidateWithCSRFAndPRG(t *testing.T) {
+	firstKey := strings.Repeat("a", 64)
+	secondKey := strings.Repeat("b", 64)
+	service := &fakeService{
+		getResult: Task{
+			ID:                testTaskID,
+			Title:             "候选确认任务",
+			SKU:               "BLACK-L",
+			Quantity:          2,
+			Status:            "WAITING_CONFIRMATION",
+			Version:           7,
+			ReferenceAssetID:  "00000000-0000-4000-8000-000000000009",
+			CreatedAt:         time.Now().UTC(),
+			UpdatedAt:         time.Now().UTC(),
+			TaskContentSHA256: strings.Repeat("c", 64),
+			Candidates: []AuthorizationCandidate{
+				{
+					CandidateKey: firstKey,
+					Ordinal:      1,
+					Title:        "候选一",
+					SKUText:      "BLACK-L",
+					PriceText:    "20.00",
+					EvidenceURLs: []string{"/api/v1/assets/evidence-1/content"},
+				},
+				{
+					CandidateKey: secondKey,
+					Ordinal:      2,
+					Title:        "候选二",
+					SKUText:      "BLACK-XL",
+					PriceText:    "22.00",
+				},
+			},
+		},
+	}
+	router := newTestRouter(t, service)
+	detail := performRequest(
+		t,
+		router,
+		http.MethodGet,
+		"/tasks/"+testTaskID,
+		nil,
+		"",
+	)
+	if detail.Code != http.StatusOK {
+		t.Fatalf("detail status/body = %d/%s", detail.Code, detail.Body)
+	}
+	for _, expected := range []string{
+		"候选确认与下单授权",
+		"系统只创建待付款订单",
+		"候选一",
+		"BLACK-XL",
+		`name="candidate_key"`,
+	} {
+		if !strings.Contains(detail.Body.String(), expected) {
+			t.Fatalf("authorization detail missing %q", expected)
+		}
+	}
+	cookie := csrfCookie(t, detail)
+	authorizationKey := hiddenValue(
+		t,
+		detail.Body.String(),
+		"authorization_key",
+	)
+	form := url.Values{
+		"csrf_token":                  {cookie.Value},
+		"authorization_key":           {authorizationKey},
+		"expected_task_version":       {"7"},
+		"candidate_key":               {firstKey},
+		"selected_reason_code":        {"SKU_MATCH"},
+		"rejected_reason_code":        {"NOT_BEST_MATCH"},
+		"authorization_note":          {"已核对图片、规格与价格"},
+		"supersedes_authorization_id": {""},
+	}
+	request := httptest.NewRequest(
+		http.MethodPost,
+		"/tasks/"+testTaskID+"/order-authorizations",
+		strings.NewReader(form.Encode()),
+	)
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(cookie)
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther ||
+		response.Header().Get("Location") !=
+			"/tasks/"+testTaskID+"?notice=authorization-created" {
+		t.Fatalf(
+			"status/location = %d/%q",
+			response.Code,
+			response.Header().Get("Location"),
+		)
+	}
+	if service.authorizeInput.TaskID != testTaskID ||
+		service.authorizeInput.IdempotencyKey != authorizationKey ||
+		service.authorizeInput.ExpectedTaskVersion != 7 ||
+		service.authorizeInput.CandidateKey != firstKey ||
+		service.authorizeInput.SelectedReasonCode != "SKU_MATCH" ||
+		service.authorizeInput.RejectedReasonCode != "NOT_BEST_MATCH" {
+		t.Fatalf("authorize input = %+v", service.authorizeInput)
+	}
+}
+
+func TestTaskDetailDisablesAuthorizationAfterDelivery(t *testing.T) {
+	view := taskDetailViewFrom(Task{
+		Status: "WAITING_CONFIRMATION",
+		Candidates: []AuthorizationCandidate{{
+			CandidateKey: strings.Repeat("a", 64),
+		}},
+		OrderAuthorizations: []OrderAuthorization{{
+			ID:     "00000000-0000-4000-8000-000000000010",
+			Status: "DELIVERED",
+		}},
+	})
+	if view.CanAuthorizeOrder {
+		t.Fatal("delivered authorization remains editable")
+	}
+}
+
 func TestTaskDetailCancelModeFollowsLifecycleStatus(t *testing.T) {
 	tests := []struct {
 		status      string
@@ -614,23 +732,26 @@ func TestRendererUsesMissingKeyErrors(t *testing.T) {
 }
 
 type fakeService struct {
-	listInput    ListTasksInput
-	listResult   TaskList
-	listErr      error
-	getResult    Task
-	getErr       error
-	uploadResult UploadedAsset
-	uploadErr    error
-	uploadInput  UploadReferenceInput
-	uploadBody   []byte
-	uploadCalls  int
-	createResult Task
-	createErr    error
-	createInput  CreateTaskInput
-	createCalls  int
-	cancelResult Task
-	cancelErr    error
-	cancelInput  CancelTaskInput
+	listInput       ListTasksInput
+	listResult      TaskList
+	listErr         error
+	getResult       Task
+	getErr          error
+	uploadResult    UploadedAsset
+	uploadErr       error
+	uploadInput     UploadReferenceInput
+	uploadBody      []byte
+	uploadCalls     int
+	createResult    Task
+	createErr       error
+	createInput     CreateTaskInput
+	createCalls     int
+	cancelResult    Task
+	cancelErr       error
+	cancelInput     CancelTaskInput
+	authorizeResult OrderAuthorization
+	authorizeErr    error
+	authorizeInput  AuthorizeOrderInput
 }
 
 func (service *fakeService) ListTasks(
@@ -679,6 +800,14 @@ func (service *fakeService) CancelTask(
 	return service.cancelResult, service.cancelErr
 }
 
+func (service *fakeService) AuthorizeOrder(
+	_ context.Context,
+	input AuthorizeOrderInput,
+) (OrderAuthorization, error) {
+	service.authorizeInput = input
+	return service.authorizeResult, service.authorizeErr
+}
+
 func newTestRouter(t *testing.T, service Service) http.Handler {
 	t.Helper()
 	gin.SetMode(gin.TestMode)
diff --git a/backend-api/internal/transport/webui/static/admin.css b/backend-api/internal/transport/webui/static/admin.css
index 9640b67..ddd8a62 100644
--- a/backend-api/internal/transport/webui/static/admin.css
+++ b/backend-api/internal/transport/webui/static/admin.css
@@ -101,6 +101,157 @@ textarea {
   overflow-wrap: anywhere;
 }
 
+.authorization-section {
+  margin-top: 20px;
+}
+
+.section-heading-row {
+  display: flex;
+  align-items: start;
+  justify-content: space-between;
+  gap: 16px;
+}
+
+.section-heading-row h2 {
+  margin-bottom: 4px;
+}
+
+.candidate-count {
+  flex: 0 0 auto;
+  color: var(--muted);
+  font-weight: 700;
+}
+
+.authorization-form {
+  display: grid;
+  gap: 18px;
+  margin-top: 18px;
+}
+
+.candidate-fieldset {
+  min-width: 0;
+  margin: 0;
+  padding: 0;
+  border: 0;
+}
+
+.candidate-fieldset legend {
+  margin-bottom: 9px;
+  font-weight: 700;
+}
+
+.authorization-candidates {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+  gap: 12px;
+}
+
+.authorization-candidate {
+  display: grid;
+  min-width: 0;
+  gap: 7px;
+  padding: 14px;
+  border: 1px solid var(--line);
+  border-radius: 6px;
+  background: var(--surface-soft);
+  cursor: pointer;
+}
+
+.authorization-candidate:has(input:checked) {
+  border-color: var(--brand);
+  box-shadow: 0 0 0 2px rgba(11, 107, 80, 0.14);
+}
+
+.candidate-choice {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  color: var(--brand-dark);
+  font-weight: 800;
+}
+
+.candidate-choice input,
+.authorization-confirm input {
+  width: 20px;
+  min-height: 20px;
+  margin: 0;
+}
+
+.candidate-key {
+  display: block;
+  overflow-wrap: anywhere;
+  color: var(--muted);
+  font-size: 11px;
+}
+
+.candidate-evidence {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 6px;
+}
+
+.candidate-evidence img {
+  width: 100%;
+  aspect-ratio: 4 / 3;
+  object-fit: contain;
+  border: 1px solid var(--line);
+  background: var(--surface);
+}
+
+.authorization-reasons {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 14px;
+}
+
+.authorization-reasons label {
+  display: grid;
+  gap: 6px;
+  font-weight: 700;
+}
+
+.authorization-note {
+  grid-column: 1 / -1;
+}
+
+.authorization-confirm {
+  display: flex;
+  align-items: flex-start;
+  gap: 9px;
+  padding: 12px;
+  border-left: 4px solid var(--warn);
+  background: var(--warn-soft);
+}
+
+.authorization-form > .button {
+  justify-self: start;
+}
+
+.authorization-unavailable {
+  padding: 12px;
+  border-left: 4px solid var(--warn);
+  background: var(--warn-soft);
+}
+
+.authorization-history {
+  display: grid;
+  gap: 8px;
+  padding-left: 22px;
+}
+
+.authorization-history li {
+  padding: 10px 12px;
+  border-bottom: 1px solid var(--line);
+}
+
+.authorization-history span,
+.authorization-history time {
+  display: block;
+  overflow-wrap: anywhere;
+  color: var(--muted);
+  font-size: 13px;
+}
+
 button,
 input,
 select {
@@ -901,10 +1052,15 @@ tbody tr:last-child td {
 
   .upload-layout,
   .detail-layout,
-  .requirement-layout {
+  .requirement-layout,
+  .authorization-reasons {
     grid-template-columns: 1fr;
   }
 
+  .authorization-note {
+    grid-column: auto;
+  }
+
   .image-preview {
     max-width: 320px;
   }
@@ -978,6 +1134,19 @@ tbody tr:last-child td {
     padding: 18px 14px;
   }
 
+  .section-heading-row {
+    align-items: stretch;
+    flex-direction: column;
+  }
+
+  .authorization-candidates {
+    grid-template-columns: 1fr;
+  }
+
+  .authorization-form > .button {
+    width: 100%;
+  }
+
   .form-actions,
   .dialog-actions {
     flex-direction: column-reverse;
diff --git a/backend-api/internal/transport/webui/templates/task-detail.gohtml b/backend-api/internal/transport/webui/templates/task-detail.gohtml
index ad77764..564a8ea 100644
--- a/backend-api/internal/transport/webui/templates/task-detail.gohtml
+++ b/backend-api/internal/transport/webui/templates/task-detail.gohtml
@@ -73,6 +73,108 @@
       </aside>
     </div>
 
+    {{if .Task.Candidates}}
+    <section class="content-section authorization-section" aria-labelledby="authorization-heading">
+      <div class="section-heading-row">
+        <div>
+          <h2 id="authorization-heading">候选确认与下单授权</h2>
+          <p class="section-note">选择只会授权设备创建一笔待付款订单，不授权付款。</p>
+        </div>
+        <span class="candidate-count">{{len .Task.Candidates}} 个候选</span>
+      </div>
+
+      {{if .Task.CanAuthorizeOrder}}
+      <form class="authorization-form" method="post"
+        action="/tasks/{{pathPart .Task.ID}}/order-authorizations">
+        <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
+        <input type="hidden" name="authorization_key" value="{{.AuthorizationKey}}">
+        <input type="hidden" name="expected_task_version" value="{{.Task.Version}}">
+        <input type="hidden" name="supersedes_authorization_id"
+          value="{{.Task.ActiveAuthorizationID}}">
+
+        <fieldset class="candidate-fieldset">
+          <legend>选择要采购的商品</legend>
+          <div class="authorization-candidates">
+            {{range .Task.Candidates}}
+            <label class="authorization-candidate">
+              <span class="candidate-choice">
+                <input type="radio" name="candidate_key" value="{{.CandidateKey}}" required>
+                <span>候选 {{.Ordinal}}</span>
+              </span>
+              <strong>{{.Title}}</strong>
+              <span>规格：{{if .SKUText}}{{.SKUText}}{{else}}未读取{{end}}</span>
+              <span>组合价格：{{if .PriceText}}{{.PriceText}}{{else}}未读取{{end}}</span>
+              <code class="candidate-key">{{.CandidateKey}}</code>
+              {{if .EvidenceURLs}}
+              <span class="candidate-evidence">
+                {{range .EvidenceURLs}}<img src="{{.}}" alt="候选受控证据截图">{{end}}
+              </span>
+              {{end}}
+            </label>
+            {{end}}
+          </div>
+        </fieldset>
+
+        <div class="authorization-reasons">
+          <label>
+            <span>所选候选理由</span>
+            <select name="selected_reason_code" required>
+              <option value="">请选择</option>
+              <option value="SKU_MATCH">SKU 匹配</option>
+              <option value="IMAGE_MATCH">图片匹配</option>
+              {{if .Task.MaxBudget}}<option value="PRICE_ACCEPTABLE">价格可接受</option>{{end}}
+              <option value="EVIDENCE_SUFFICIENT">证据充分</option>
+            </select>
+          </label>
+          <label>
+            <span>其余候选拒绝理由</span>
+            <select name="rejected_reason_code" required>
+              <option value="">请选择</option>
+              <option value="NOT_BEST_MATCH">不是最佳匹配</option>
+              <option value="SKU_MISMATCH">SKU 不匹配</option>
+              <option value="IMAGE_MISMATCH">图片不匹配</option>
+              {{if .Task.MaxBudget}}<option value="PRICE_TOO_HIGH">价格过高</option>{{end}}
+              <option value="OUT_OF_STOCK">无库存</option>
+              <option value="EVIDENCE_INSUFFICIENT">证据不足</option>
+            </select>
+          </label>
+          <label class="authorization-note">
+            <span>授权备注（可选）</span>
+            <textarea name="authorization_note" rows="3" maxlength="200"></textarea>
+          </label>
+        </div>
+
+        <label class="authorization-confirm">
+          <input type="checkbox" required>
+          <span>我确认商品、SKU、数量和证据；系统只创建待付款订单，付款由人员在拼多多完成。</span>
+        </label>
+        <button class="button primary" type="submit">
+          {{if .Task.ActiveAuthorizationID}}改选并创建新授权{{else}}确认商品并授权下单{{end}}
+        </button>
+      </form>
+      {{else}}
+      <p class="authorization-unavailable" role="status">
+        当前候选不能创建或修改授权，请查看下方授权状态或刷新任务。
+      </p>
+      {{end}}
+
+      {{if .Task.OrderAuthorizations}}
+      <h3>授权历史</h3>
+      <ol class="authorization-history">
+        {{range .Task.OrderAuthorizations}}
+        <li>
+          <strong>版本 {{.Version}} · {{.Status}}</strong>
+          <span>候选 {{.CandidateKey}}</span>
+          <span>规格 {{if .CandidateSKUText}}{{.CandidateSKUText}}{{else}}未读取{{end}} ·
+            数量 {{.Quantity}} · 价格 {{if .CandidatePriceText}}{{.CandidatePriceText}}{{else}}未读取{{end}}</span>
+          <time datetime="{{machineTime .CreatedAt}}">{{displayTime .CreatedAt}}</time>
+        </li>
+        {{end}}
+      </ol>
+      {{end}}
+    </section>
+    {{end}}
+
     {{with .Task.ExecutionReport}}
     <section class="content-section execution-audit" aria-labelledby="execution-audit-heading">
       <h2 id="execution-audit-heading">执行审计</h2>
diff --git a/backend-api/internal/transport/webui/types.go b/backend-api/internal/transport/webui/types.go
index eeae3b6..a0cadfe 100644
--- a/backend-api/internal/transport/webui/types.go
+++ b/backend-api/internal/transport/webui/types.go
@@ -24,6 +24,7 @@ type Service interface {
 	UploadReference(context.Context, UploadReferenceInput) (UploadedAsset, error)
 	CreateTask(context.Context, CreateTaskInput) (Task, error)
 	CancelTask(context.Context, CancelTaskInput) (Task, error)
+	AuthorizeOrder(context.Context, AuthorizeOrderInput) (OrderAuthorization, error)
 }
 
 type ListTasksInput struct {
@@ -48,17 +49,43 @@ type TaskSummary struct {
 }
 
 type Task struct {
-	ID               string
-	Title            string
-	SKU              string
-	Description      string
-	Quantity         int64
-	MaxBudget        string
-	Status           string
-	ReferenceAssetID string
-	CreatedAt        time.Time
-	UpdatedAt        time.Time
-	ExecutionReport  *ExecutionReport
+	ID                  string
+	Title               string
+	SKU                 string
+	Description         string
+	Quantity            int64
+	MaxBudget           string
+	Status              string
+	Version             int64
+	ExecutionID         string
+	TaskContentSHA256   string
+	ReferenceAssetID    string
+	CreatedAt           time.Time
+	UpdatedAt           time.Time
+	ExecutionReport     *ExecutionReport
+	Candidates          []AuthorizationCandidate
+	OrderAuthorizations []OrderAuthorization
+}
+
+type AuthorizationCandidate struct {
+	CandidateKey string
+	Ordinal      int
+	Title        string
+	SKUText      string
+	PriceText    string
+	EvidenceURLs []string
+}
+
+type OrderAuthorization struct {
+	ID                 string
+	Version            int
+	CandidateKey       string
+	CandidateSKUText   string
+	CandidatePriceText string
+	Quantity           int
+	Status             string
+	SupersedesID       string
+	CreatedAt          time.Time
 }
 
 type ExecutionReport struct {
@@ -130,3 +157,14 @@ type CancelTaskInput struct {
 	TaskID         string
 	IdempotencyKey string
 }
+
+type AuthorizeOrderInput struct {
+	TaskID                    string
+	IdempotencyKey            string
+	ExpectedTaskVersion       int64
+	CandidateKey              string
+	SelectedReasonCode        string
+	RejectedReasonCode        string
+	Note                      string
+	SupersedesAuthorizationID string
+}
diff --git a/backend-api/internal/transport/webui/usecase_adapter.go b/backend-api/internal/transport/webui/usecase_adapter.go
index dba9633..89dcb32 100644
--- a/backend-api/internal/transport/webui/usecase_adapter.go
+++ b/backend-api/internal/transport/webui/usecase_adapter.go
@@ -14,20 +14,23 @@ import (
 const localAdminSubject = "local-admin"
 
 type UsecaseAdapter struct {
-	tasks  *usecase.TaskService
-	assets *usecase.AssetService
+	tasks          *usecase.TaskService
+	assets         *usecase.AssetService
+	authorizations *usecase.OrderAuthorizationService
 }
 
 func NewUsecaseAdapter(
 	tasks *usecase.TaskService,
 	assets *usecase.AssetService,
+	authorizations *usecase.OrderAuthorizationService,
 ) (*UsecaseAdapter, error) {
-	if tasks == nil || assets == nil {
+	if tasks == nil || assets == nil || authorizations == nil {
 		return nil, errors.New("admin web use cases are required")
 	}
 	return &UsecaseAdapter{
-		tasks:  tasks,
-		assets: assets,
+		tasks:          tasks,
+		assets:         assets,
+		authorizations: authorizations,
 	}, nil
 }
 
@@ -146,6 +149,70 @@ func (adapter *UsecaseAdapter) CancelTask(
 	return taskFromPurchase(task), nil
 }
 
+func (adapter *UsecaseAdapter) AuthorizeOrder(
+	ctx context.Context,
+	input AuthorizeOrderInput,
+) (OrderAuthorization, error) {
+	detail, err := adapter.tasks.Get(ctx, localAdminSubject, input.TaskID)
+	if err != nil {
+		return OrderAuthorization{}, mapUsecaseError(err)
+	}
+	if detail.Task.Version != input.ExpectedTaskVersion ||
+		detail.Execution == nil ||
+		detail.Report == nil ||
+		detail.Report.DecisionDataset == nil {
+		return OrderAuthorization{}, ErrConflict
+	}
+	var supersedes *string
+	if input.SupersedesAuthorizationID != "" {
+		value := input.SupersedesAuthorizationID
+		supersedes = &value
+	}
+	items := make(
+		[]usecase.OrderAuthorizationItemInput,
+		0,
+		len(detail.Report.DecisionDataset.Observations),
+	)
+	for _, observation := range detail.Report.DecisionDataset.Observations {
+		if observation.Identity == nil {
+			return OrderAuthorization{}, ErrConflict
+		}
+		label := "REJECT"
+		reason := input.RejectedReasonCode
+		if observation.Identity.CandidateKey == input.CandidateKey {
+			label = "ACCEPT"
+			reason = input.SelectedReasonCode
+		}
+		items = append(items, usecase.OrderAuthorizationItemInput{
+			CandidateKey:      observation.Identity.CandidateKey,
+			Label:             label,
+			PrimaryReasonCode: reason,
+			ReasonCodes:       []string{reason},
+		})
+	}
+	result, err := adapter.authorizations.Create(
+		ctx,
+		usecase.CreateOrderAuthorizationCommand{
+			ActorUserID:               actorUserID(ctx),
+			TaskID:                    input.TaskID,
+			IdempotencyKey:            input.IdempotencyKey,
+			ExecutionID:               detail.Execution.ID,
+			TaskContentSHA256:         usecase.TaskContentSHA256(detail.Task),
+			ExpectedTaskVersion:       input.ExpectedTaskVersion,
+			CandidateKey:              input.CandidateKey,
+			ReasonSchemaVersion:       1,
+			PrimaryReasonCode:         "SELECTED_BEST_MATCH",
+			Note:                      input.Note,
+			SupersedesAuthorizationID: supersedes,
+			Items:                     items,
+		},
+	)
+	if err != nil {
+		return OrderAuthorization{}, mapUsecaseError(err)
+	}
+	return orderAuthorizationFrom(result.Authorization), nil
+}
+
 func taskSummaryFrom(task domain.PurchaseTask) TaskSummary {
 	return TaskSummary{
 		ID:        task.ID,
@@ -177,11 +244,64 @@ func taskFromPurchase(task domain.PurchaseTask) Task {
 
 func taskFromDetail(detail domain.TaskDetail) Task {
 	task := taskFromPurchase(detail.Task)
+	task.Version = detail.Task.Version
 	task.ReferenceAssetID = detail.Asset.ID
 	task.ExecutionReport = executionReportFrom(detail.Report)
+	task.TaskContentSHA256 = usecase.TaskContentSHA256(detail.Task)
+	if detail.Execution != nil {
+		task.ExecutionID = detail.Execution.ID
+	}
+	if detail.Report != nil && detail.Report.DecisionDataset != nil {
+		for _, observation := range detail.Report.DecisionDataset.Observations {
+			if observation.Identity == nil {
+				continue
+			}
+			candidate := AuthorizationCandidate{
+				CandidateKey: observation.Identity.CandidateKey,
+				Ordinal:      observation.Ordinal,
+				Title:        observation.Title,
+				SKUText:      observation.SKUText,
+				PriceText:    observation.PriceText,
+				EvidenceURLs: make([]string, 0, len(observation.EvidenceAssetIDs)),
+			}
+			for _, evidenceID := range observation.EvidenceAssetIDs {
+				candidate.EvidenceURLs = append(
+					candidate.EvidenceURLs,
+					"/api/v1/tasks/"+detail.Task.ID+
+						"/evidence/"+evidenceID+"/content",
+				)
+			}
+			task.Candidates = append(task.Candidates, candidate)
+		}
+	}
+	for _, authorization := range detail.OrderAuthorizations {
+		task.OrderAuthorizations = append(
+			task.OrderAuthorizations,
+			orderAuthorizationFrom(authorization),
+		)
+	}
 	return task
 }
 
+func orderAuthorizationFrom(
+	authorization domain.OrderAuthorization,
+) OrderAuthorization {
+	result := OrderAuthorization{
+		ID:                 authorization.ID,
+		Version:            authorization.AuthorizationVersion,
+		CandidateKey:       authorization.CandidateKey,
+		CandidateSKUText:   authorization.CandidateSKUText,
+		CandidatePriceText: authorization.CandidatePriceText,
+		Quantity:           authorization.Quantity,
+		Status:             string(authorization.Status),
+		CreatedAt:          authorization.CreatedAt,
+	}
+	if authorization.SupersedesAuthorizationID != nil {
+		result.SupersedesID = *authorization.SupersedesAuthorizationID
+	}
+	return result
+}
+
 func executionReportFrom(report *domain.ExecutionReport) *ExecutionReport {
 	if report == nil {
 		return nil
diff --git a/backend-api/internal/usecase/execution_result_service.go b/backend-api/internal/usecase/execution_result_service.go
index 6a8b4c2..f5d41fe 100644
--- a/backend-api/internal/usecase/execution_result_service.go
+++ b/backend-api/internal/usecase/execution_result_service.go
@@ -285,6 +285,24 @@ func (service *ExecutionResultService) StoreCandidates(
 	if err != nil {
 		return false, internalExecutionResultFailure(err)
 	}
+	var readyEvent *domain.TaskEvent
+	if len(command.Candidates) > 0 {
+		eventID, err := service.ids.NewID()
+		if err != nil {
+			return false, internalExecutionResultFailure(err)
+		}
+		actorUserID := identity.UserID
+		actorDeviceID := identity.DeviceID
+		readyEvent = &domain.TaskEvent{
+			ID:            eventID,
+			TaskID:        identity.TaskID,
+			ActorUserID:   &actorUserID,
+			ActorDeviceID: &actorDeviceID,
+			Type:          "CANDIDATES_READY",
+			Message:       "candidates ready for admin confirmation",
+			OccurredAt:    now,
+		}
+	}
 	replayed, err := service.repository.StoreExecutionCandidates(
 		ctx,
 		service.write(identity, executionResultCandidatesOperation, requestHash, now),
@@ -297,6 +315,7 @@ func (service *ExecutionResultService) StoreCandidates(
 			ProvenanceJSON:     provenanceJSON,
 			CandidatesJSON:     candidatesJSON,
 			RecommendationJSON: recommendationJSON,
+			ReadyEvent:         readyEvent,
 			ReceivedAt:         now,
 		},
 	)
diff --git a/backend-api/internal/usecase/order_authorization_service.go b/backend-api/internal/usecase/order_authorization_service.go
new file mode 100644
index 0000000..5b3f3bb
--- /dev/null
+++ b/backend-api/internal/usecase/order_authorization_service.go
@@ -0,0 +1,295 @@
+package usecase
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"strings"
+	"time"
+
+	"cmroubao/backend-api/internal/domain"
+)
+
+type OrderAuthorizationItemInput struct {
+	CandidateKey      string   `json:"candidate_key"`
+	Label             string   `json:"label"`
+	PrimaryReasonCode string   `json:"primary_reason_code"`
+	ReasonCodes       []string `json:"reason_codes"`
+	Note              string   `json:"note"`
+}
+
+type CreateOrderAuthorizationCommand struct {
+	ActorUserID               string                        `json:"-"`
+	TaskID                    string                        `json:"-"`
+	IdempotencyKey            string                        `json:"-"`
+	ExecutionID               string                        `json:"execution_id"`
+	TaskContentSHA256         string                        `json:"task_content_sha256"`
+	ExpectedTaskVersion       int64                         `json:"expected_task_version"`
+	CandidateKey              string                        `json:"candidate_key"`
+	ReasonSchemaVersion       int                           `json:"reason_schema_version"`
+	PrimaryReasonCode         string                        `json:"primary_reason_code"`
+	Note                      string                        `json:"note"`
+	SupersedesAuthorizationID *string                       `json:"supersedes_authorization_id"`
+	Items                     []OrderAuthorizationItemInput `json:"items"`
+}
+
+type CreateOrderAuthorizationWrite struct {
+	AuthorizationID string
+	ReviewID        string
+	RequestSHA256   string
+	Now             time.Time
+	Event           domain.TaskEvent
+	Command         CreateOrderAuthorizationCommand
+}
+
+type CreateOrderAuthorizationResult struct {
+	Authorization domain.OrderAuthorization
+	Replayed      bool
+}
+
+type OrderAuthorizationRepository interface {
+	CreateOrderAuthorization(
+		context.Context,
+		CreateOrderAuthorizationWrite,
+	) (domain.OrderAuthorization, bool, error)
+}
+
+type OrderAuthorizationService struct {
+	repository OrderAuthorizationRepository
+	clock      Clock
+	ids        IDGenerator
+}
+
+func NewOrderAuthorizationService(
+	repository OrderAuthorizationRepository,
+	clock Clock,
+	ids IDGenerator,
+) (*OrderAuthorizationService, error) {
+	if repository == nil || clock == nil || ids == nil {
+		return nil, errors.New("order authorization service dependencies are required")
+	}
+	return &OrderAuthorizationService{
+		repository: repository,
+		clock:      clock,
+		ids:        ids,
+	}, nil
+}
+
+func (service *OrderAuthorizationService) Create(
+	ctx context.Context,
+	command CreateOrderAuthorizationCommand,
+) (CreateOrderAuthorizationResult, error) {
+	command = normalizeOrderAuthorizationCommand(command)
+	if err := validateOrderAuthorizationCommand(command); err != nil {
+		return CreateOrderAuthorizationResult{}, err
+	}
+	requestSHA256, err := hashOrderAuthorizationCommand(command)
+	if err != nil {
+		return CreateOrderAuthorizationResult{}, internalExecutionResultFailure(err)
+	}
+	authorizationID, err := service.ids.NewID()
+	if err != nil {
+		return CreateOrderAuthorizationResult{}, internalExecutionResultFailure(err)
+	}
+	reviewID, err := service.ids.NewID()
+	if err != nil {
+		return CreateOrderAuthorizationResult{}, internalExecutionResultFailure(err)
+	}
+	eventID, err := service.ids.NewID()
+	if err != nil {
+		return CreateOrderAuthorizationResult{}, internalExecutionResultFailure(err)
+	}
+	now := service.clock.Now().UTC()
+	actorUserID := command.ActorUserID
+	authorization, replayed, err := service.repository.CreateOrderAuthorization(
+		ctx,
+		CreateOrderAuthorizationWrite{
+			AuthorizationID: authorizationID,
+			ReviewID:        reviewID,
+			RequestSHA256:   requestSHA256,
+			Now:             now,
+			Event: domain.TaskEvent{
+				ID:          eventID,
+				TaskID:      command.TaskID,
+				ActorUserID: &actorUserID,
+				Type:        "ORDER_AUTHORIZATION_CREATED",
+				Message: "order authorization created for candidate " +
+					command.CandidateKey[:12],
+				OccurredAt: now,
+			},
+			Command: command,
+		},
+	)
+	if err != nil {
+		return CreateOrderAuthorizationResult{}, wrapRepositoryError(err)
+	}
+	return CreateOrderAuthorizationResult{
+		Authorization: authorization,
+		Replayed:      replayed,
+	}, nil
+}
+
+func normalizeOrderAuthorizationCommand(
+	command CreateOrderAuthorizationCommand,
+) CreateOrderAuthorizationCommand {
+	command.ActorUserID = strings.TrimSpace(command.ActorUserID)
+	command.TaskID = strings.TrimSpace(command.TaskID)
+	command.IdempotencyKey = strings.TrimSpace(command.IdempotencyKey)
+	command.ExecutionID = strings.TrimSpace(command.ExecutionID)
+	command.TaskContentSHA256 = strings.TrimSpace(command.TaskContentSHA256)
+	command.CandidateKey = strings.TrimSpace(command.CandidateKey)
+	command.PrimaryReasonCode = strings.TrimSpace(command.PrimaryReasonCode)
+	command.Note = strings.TrimSpace(command.Note)
+	if command.SupersedesAuthorizationID != nil {
+		value := strings.TrimSpace(*command.SupersedesAuthorizationID)
+		command.SupersedesAuthorizationID = &value
+	}
+	for index := range command.Items {
+		item := &command.Items[index]
+		item.CandidateKey = strings.TrimSpace(item.CandidateKey)
+		item.Label = strings.TrimSpace(item.Label)
+		item.PrimaryReasonCode = strings.TrimSpace(item.PrimaryReasonCode)
+		item.Note = strings.TrimSpace(item.Note)
+		for reasonIndex := range item.ReasonCodes {
+			item.ReasonCodes[reasonIndex] =
+				strings.TrimSpace(item.ReasonCodes[reasonIndex])
+		}
+	}
+	return command
+}
+
+func validateOrderAuthorizationCommand(
+	command CreateOrderAuthorizationCommand,
+) error {
+	fields := make(map[string]string)
+	if !isUUID(command.ActorUserID) {
+		fields["actor_user_id"] = "must be a UUID"
+	}
+	if !isUUID(command.TaskID) {
+		fields["task_id"] = "must be a UUID"
+	}
+	if !isUUID(command.ExecutionID) {
+		fields["execution_id"] = "must be a UUID"
+	}
+	if len(command.IdempotencyKey) == 0 ||
+		len([]byte(command.IdempotencyKey)) > maxIdempotencyKeyBytes ||
+		!isPrintableASCII(command.IdempotencyKey) {
+		fields["idempotency_key"] = "must be 1 to 128 printable ASCII bytes"
+	}
+	if !sha256Pattern.MatchString(command.TaskContentSHA256) {
+		fields["task_content_sha256"] = "must be lowercase SHA-256"
+	}
+	if command.ExpectedTaskVersion < 1 {
+		fields["expected_task_version"] = "must be positive"
+	}
+	if !sha256Pattern.MatchString(command.CandidateKey) {
+		fields["candidate_key"] = "must be lowercase SHA-256"
+	}
+	if command.ReasonSchemaVersion != candidateReasonSchemaVersion {
+		fields["reason_schema_version"] = "must be 1"
+	}
+	if !validReviewPrimaryReason("CANDIDATE_ACCEPTED", command.PrimaryReasonCode) ||
+		!validReviewNote(command.PrimaryReasonCode, command.Note) {
+		fields["primary_reason_code"] = "is invalid"
+	}
+	if command.SupersedesAuthorizationID != nil &&
+		!isUUID(*command.SupersedesAuthorizationID) {
+		fields["supersedes_authorization_id"] = "must be a UUID"
+	}
+	if len(command.Items) < 1 || len(command.Items) > 5 {
+		fields["items"] = "must contain 1 to 5 items"
+	}
+	seen := make(map[string]struct{}, len(command.Items))
+	accepted := 0
+	for _, item := range command.Items {
+		if !sha256Pattern.MatchString(item.CandidateKey) {
+			fields["items"] = "candidate keys must be lowercase SHA-256"
+			continue
+		}
+		if _, found := seen[item.CandidateKey]; found {
+			fields["items"] = "candidate keys must be unique"
+			continue
+		}
+		seen[item.CandidateKey] = struct{}{}
+		if item.Label == "ACCEPT" {
+			accepted++
+		}
+		if item.Label != "ACCEPT" && item.Label != "REJECT" {
+			fields["items"] = "labels must be ACCEPT or REJECT"
+			continue
+		}
+		if !validOrderAuthorizationItem(item) {
+			fields["items"] = "contains invalid reasons"
+		}
+	}
+	_, found := seen[command.CandidateKey]
+	if !found || accepted != 1 || !acceptedOrderAuthorizationItem(
+		command.Items,
+		command.CandidateKey,
+	) {
+		fields["candidate_key"] = "must identify the single accepted item"
+	}
+	if len(fields) > 0 {
+		return invalidError(
+			"ORDER_AUTHORIZATION_INVALID",
+			"order authorization request is invalid",
+			fields,
+		)
+	}
+	return nil
+}
+
+func validOrderAuthorizationItem(item OrderAuthorizationItemInput) bool {
+	if len(item.ReasonCodes) < 1 || len(item.ReasonCodes) > 8 {
+		return false
+	}
+	seen := make(map[string]struct{}, len(item.ReasonCodes))
+	containsPrimary := false
+	for _, reason := range item.ReasonCodes {
+		if !validItemReason(item.Label, reason) {
+			return false
+		}
+		if _, found := seen[reason]; found {
+			return false
+		}
+		seen[reason] = struct{}{}
+		containsPrimary = containsPrimary || reason == item.PrimaryReasonCode
+	}
+	return containsPrimary &&
+		validReviewNote(item.PrimaryReasonCode, item.Note)
+}
+
+func acceptedOrderAuthorizationItem(
+	items []OrderAuthorizationItemInput,
+	candidateKey string,
+) bool {
+	for _, item := range items {
+		if item.CandidateKey == candidateKey {
+			return item.Label == "ACCEPT"
+		}
+	}
+	return false
+}
+
+func hashOrderAuthorizationCommand(
+	command CreateOrderAuthorizationCommand,
+) (string, error) {
+	command.IdempotencyKey = ""
+	payload := struct {
+		ActorUserID string                          `json:"actor_user_id"`
+		TaskID      string                          `json:"task_id"`
+		Command     CreateOrderAuthorizationCommand `json:"command"`
+	}{
+		ActorUserID: command.ActorUserID,
+		TaskID:      command.TaskID,
+		Command:     command,
+	}
+	encoded, err := json.Marshal(payload)
+	if err != nil {
+		return "", err
+	}
+	sum := sha256.Sum256(encoded)
+	return hex.EncodeToString(sum[:]), nil
+}
diff --git a/backend-api/internal/usecase/order_authorization_service_test.go b/backend-api/internal/usecase/order_authorization_service_test.go
new file mode 100644
index 0000000..a0ec44a
--- /dev/null
+++ b/backend-api/internal/usecase/order_authorization_service_test.go
@@ -0,0 +1,83 @@
+package usecase
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestValidateOrderAuthorizationAcceptsSingleStructuredSelection(
+	t *testing.T,
+) {
+	command := validOrderAuthorizationCommand()
+
+	if err := validateOrderAuthorizationCommand(command); err != nil {
+		t.Fatalf("validate order authorization: %v", err)
+	}
+}
+
+func TestValidateOrderAuthorizationRejectsDuplicateCandidateKey(
+	t *testing.T,
+) {
+	command := validOrderAuthorizationCommand()
+	command.Items[1].CandidateKey = command.Items[0].CandidateKey
+
+	if err := validateOrderAuthorizationCommand(command); err == nil {
+		t.Fatal("expected duplicate candidate key to be rejected")
+	}
+}
+
+func TestValidateOrderAuthorizationRejectsSelectedKeyMismatch(
+	t *testing.T,
+) {
+	command := validOrderAuthorizationCommand()
+	command.CandidateKey = command.Items[1].CandidateKey
+
+	if err := validateOrderAuthorizationCommand(command); err == nil {
+		t.Fatal("expected selected candidate mismatch to be rejected")
+	}
+}
+
+func TestValidateOrderAuthorizationRequiresOtherNote(t *testing.T) {
+	command := validOrderAuthorizationCommand()
+	command.Items[0].PrimaryReasonCode = "OTHER"
+	command.Items[0].ReasonCodes = []string{"OTHER"}
+	command.Items[0].Note = "短"
+
+	if err := validateOrderAuthorizationCommand(command); err == nil {
+		t.Fatal("expected short OTHER note to be rejected")
+	}
+	command.Items[0].Note = "人工判断规格更准确"
+	if err := validateOrderAuthorizationCommand(command); err != nil {
+		t.Fatalf("validate OTHER note: %v", err)
+	}
+}
+
+func validOrderAuthorizationCommand() CreateOrderAuthorizationCommand {
+	firstKey := strings.Repeat("a", 64)
+	secondKey := strings.Repeat("b", 64)
+	return CreateOrderAuthorizationCommand{
+		ActorUserID:         "00000000-0000-4000-8000-000000000001",
+		TaskID:              "00000000-0000-4000-8000-000000000002",
+		IdempotencyKey:      "authorize-order-test",
+		ExecutionID:         "00000000-0000-4000-8000-000000000003",
+		TaskContentSHA256:   strings.Repeat("c", 64),
+		ExpectedTaskVersion: 2,
+		CandidateKey:        firstKey,
+		ReasonSchemaVersion: 1,
+		PrimaryReasonCode:   "SELECTED_BEST_MATCH",
+		Items: []OrderAuthorizationItemInput{
+			{
+				CandidateKey:      firstKey,
+				Label:             "ACCEPT",
+				PrimaryReasonCode: "SKU_MATCH",
+				ReasonCodes:       []string{"SKU_MATCH", "IMAGE_MATCH"},
+			},
+			{
+				CandidateKey:      secondKey,
+				Label:             "REJECT",
+				PrimaryReasonCode: "NOT_BEST_MATCH",
+				ReasonCodes:       []string{"NOT_BEST_MATCH"},
+			},
+		},
+	}
+}
diff --git a/backend-api/migrations/00008_order_authorizations.sql b/backend-api/migrations/00008_order_authorizations.sql
new file mode 100644
index 0000000..068c500
--- /dev/null
+++ b/backend-api/migrations/00008_order_authorizations.sql
@@ -0,0 +1,246 @@
+-- +goose Up
+ALTER TABLE task_events RENAME TO task_events_v7;
+
+CREATE TABLE task_events (
+    id TEXT PRIMARY KEY NOT NULL
+        CHECK (length(id) = 36),
+    task_id TEXT NOT NULL
+        REFERENCES purchase_tasks(id) ON UPDATE RESTRICT ON DELETE CASCADE,
+    event_type TEXT NOT NULL
+        CHECK (
+            event_type IN (
+                'TASK_CREATED',
+                'TASK_CLAIMED',
+                'TASK_RECLAIMED',
+                'TASK_RELEASED',
+                'TASK_STARTED',
+                'TASK_CANCEL_REQUESTED',
+                'TASK_CANCELED',
+                'CANDIDATES_READY',
+                'ORDER_AUTHORIZATION_CREATED'
+            )
+        ),
+    message TEXT NOT NULL,
+    occurred_at TEXT NOT NULL,
+    actor_user_id TEXT
+        REFERENCES users(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    actor_device_id TEXT
+        REFERENCES devices(id) ON UPDATE RESTRICT ON DELETE RESTRICT
+);
+
+INSERT INTO task_events (
+    id, task_id, event_type, message, occurred_at,
+    actor_user_id, actor_device_id
+)
+SELECT
+    id, task_id, event_type, message, occurred_at,
+    actor_user_id, actor_device_id
+FROM task_events_v7;
+
+DROP TABLE task_events_v7;
+
+CREATE INDEX task_events_task_occurred_idx
+    ON task_events (task_id, occurred_at ASC, id ASC);
+
+CREATE INDEX task_events_actor_user_idx
+    ON task_events (actor_user_id, occurred_at DESC, id DESC);
+
+CREATE INDEX task_events_actor_device_idx
+    ON task_events (actor_device_id, occurred_at DESC, id DESC);
+
+CREATE TABLE order_authorizations (
+    id TEXT PRIMARY KEY NOT NULL
+        CHECK (length(id) = 36),
+    task_id TEXT NOT NULL
+        REFERENCES purchase_tasks(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    execution_id TEXT NOT NULL
+        REFERENCES task_executions(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    authorization_version INTEGER NOT NULL
+        CHECK (authorization_version > 0),
+    candidate_key TEXT NOT NULL
+        REFERENCES candidate_observation_identities(candidate_key)
+            ON UPDATE RESTRICT ON DELETE RESTRICT,
+    task_content_sha256 TEXT NOT NULL
+        CHECK (
+            length(task_content_sha256) = 64
+            AND task_content_sha256 NOT GLOB '*[^0-9a-f]*'
+        ),
+    task_version INTEGER NOT NULL
+        CHECK (task_version > 0),
+    review_id TEXT NOT NULL
+        REFERENCES candidate_human_reviews(id)
+            ON UPDATE RESTRICT ON DELETE RESTRICT,
+    review_version INTEGER NOT NULL
+        CHECK (review_version > 0),
+    user_id TEXT NOT NULL
+        REFERENCES users(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    device_id TEXT NOT NULL
+        REFERENCES devices(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    claim_generation INTEGER NOT NULL
+        CHECK (claim_generation > 0),
+    original_sku TEXT NOT NULL
+        CHECK (
+            length(trim(original_sku)) > 0
+            AND length(CAST(original_sku AS BLOB)) <= 512
+        ),
+    quantity INTEGER NOT NULL
+        CHECK (quantity > 0),
+    candidate_sku_text TEXT NOT NULL
+        CHECK (length(CAST(candidate_sku_text AS BLOB)) <= 512),
+    candidate_price_text TEXT NOT NULL
+        CHECK (length(CAST(candidate_price_text AS BLOB)) <= 64),
+    card_signature TEXT NOT NULL
+        CHECK (
+            length(card_signature) = 64
+            AND card_signature NOT GLOB '*[^0-9a-f]*'
+        ),
+    detail_signature TEXT NOT NULL
+        CHECK (
+            length(detail_signature) = 64
+            AND detail_signature NOT GLOB '*[^0-9a-f]*'
+        ),
+    detail_evidence_sha256 TEXT NOT NULL
+        CHECK (
+            length(detail_evidence_sha256) = 64
+            AND detail_evidence_sha256 NOT GLOB '*[^0-9a-f]*'
+        ),
+    specification_evidence_sha256 TEXT NOT NULL
+        CHECK (
+            length(specification_evidence_sha256) = 64
+            AND specification_evidence_sha256 NOT GLOB '*[^0-9a-f]*'
+        ),
+    status TEXT NOT NULL
+        CHECK (
+            status IN (
+                'PENDING_DELIVERY',
+                'DELIVERED',
+                'ACKNOWLEDGED',
+                'EXECUTING',
+                'CONSUMED',
+                'FAILED',
+                'REVOKED',
+                'SUPERSEDED'
+            )
+        ),
+    supersedes_authorization_id TEXT
+        REFERENCES order_authorizations(id)
+            ON UPDATE RESTRICT ON DELETE RESTRICT,
+    created_by_user_id TEXT NOT NULL
+        REFERENCES users(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    created_at TEXT NOT NULL,
+    delivered_at TEXT,
+    acknowledged_at TEXT,
+    execution_started_at TEXT,
+    consumed_at TEXT,
+    failed_at TEXT,
+    revoked_at TEXT,
+    failure_code TEXT,
+    failure_message TEXT,
+    UNIQUE (execution_id, authorization_version)
+);
+
+CREATE UNIQUE INDEX order_authorizations_active_execution_idx
+    ON order_authorizations (execution_id)
+    WHERE status IN (
+        'PENDING_DELIVERY',
+        'DELIVERED',
+        'ACKNOWLEDGED',
+        'EXECUTING'
+    );
+
+CREATE INDEX order_authorizations_task_created_idx
+    ON order_authorizations (task_id, created_at DESC, id DESC);
+
+CREATE TABLE admin_order_authorization_requests (
+    actor_user_id TEXT NOT NULL
+        REFERENCES users(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    idempotency_key TEXT NOT NULL
+        CHECK (
+            length(trim(idempotency_key)) > 0
+            AND length(CAST(idempotency_key AS BLOB)) <= 128
+        ),
+    request_sha256 TEXT NOT NULL
+        CHECK (
+            length(request_sha256) = 64
+            AND request_sha256 NOT GLOB '*[^0-9a-f]*'
+        ),
+    task_id TEXT NOT NULL
+        REFERENCES purchase_tasks(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    authorization_id TEXT NOT NULL
+        REFERENCES order_authorizations(id)
+            ON UPDATE RESTRICT ON DELETE RESTRICT,
+    created_at TEXT NOT NULL,
+    PRIMARY KEY (actor_user_id, idempotency_key)
+);
+
+-- +goose Down
+CREATE TEMP TABLE order_authorizations_v8_down_guard (
+    allowed INTEGER NOT NULL
+        CHECK (allowed = 1)
+);
+
+INSERT INTO order_authorizations_v8_down_guard (allowed)
+SELECT CASE
+    WHEN EXISTS (SELECT 1 FROM order_authorizations)
+      OR EXISTS (
+        SELECT 1
+        FROM task_events
+        WHERE event_type IN (
+            'CANDIDATES_READY',
+            'ORDER_AUTHORIZATION_CREATED'
+        )
+      )
+    THEN 0
+    ELSE 1
+END;
+
+DROP TABLE order_authorizations_v8_down_guard;
+DROP TABLE admin_order_authorization_requests;
+DROP TABLE order_authorizations;
+
+ALTER TABLE task_events RENAME TO task_events_v8;
+
+CREATE TABLE task_events (
+    id TEXT PRIMARY KEY NOT NULL
+        CHECK (length(id) = 36),
+    task_id TEXT NOT NULL
+        REFERENCES purchase_tasks(id) ON UPDATE RESTRICT ON DELETE CASCADE,
+    event_type TEXT NOT NULL
+        CHECK (
+            event_type IN (
+                'TASK_CREATED',
+                'TASK_CLAIMED',
+                'TASK_RECLAIMED',
+                'TASK_RELEASED',
+                'TASK_STARTED',
+                'TASK_CANCEL_REQUESTED',
+                'TASK_CANCELED'
+            )
+        ),
+    message TEXT NOT NULL,
+    occurred_at TEXT NOT NULL,
+    actor_user_id TEXT
+        REFERENCES users(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
+    actor_device_id TEXT
+        REFERENCES devices(id) ON UPDATE RESTRICT ON DELETE RESTRICT
+);
+
+INSERT INTO task_events (
+    id, task_id, event_type, message, occurred_at,
+    actor_user_id, actor_device_id
+)
+SELECT
+    id, task_id, event_type, message, occurred_at,
+    actor_user_id, actor_device_id
+FROM task_events_v8;
+
+DROP TABLE task_events_v8;
+
+CREATE INDEX task_events_task_occurred_idx
+    ON task_events (task_id, occurred_at ASC, id ASC);
+
+CREATE INDEX task_events_actor_user_idx
+    ON task_events (actor_user_id, occurred_at DESC, id DESC);
+
+CREATE INDEX task_events_actor_device_idx
+    ON task_events (actor_device_id, occurred_at DESC, id DESC);
diff --git a/docs/00-ai-start-here.md b/docs/00-ai-start-here.md
index bd9902f..bfb4de1 100644
--- a/docs/00-ai-start-here.md
+++ b/docs/00-ai-start-here.md
@@ -57,8 +57,9 @@
 T-205 原子领取/租约状态机、T-206 Android 登录/有限离线、T-207 本地 VLM/候选/
 证据回传、T-211 参考图召回和 SKU 硬匹配、T-212 候选身份映射，以及 T-213 受控
 规格组合/价格核验均已完成。T-208 的原始候选观测、模型评估、确定性推荐、逐候选
-结构化人工理由和修订历史也已完成。T-214 商品持久身份和重新定位指纹也已完成；
-当前正在实现 T-215 Admin 下单授权，不得直接把候选链接或列表 ordinal 当成授权。
+结构化人工理由和修订历史也已完成。T-214 商品持久身份和重新定位指纹、T-215
+Admin 候选确认与不可变待投递授权也已完成；下一步实现 T-216 设备命令投递与确认。
+不得直接把候选链接或列表 ordinal 当成授权。
 手机从管理后端领取任务并回传结果，VLM、拼多多自动化和人工确认在 App 本地完成。
 T-206 增加有限离线执行；T-207 已复用 Roubao 端上 OpenAI 兼容适配器并加密本地 Key。
 管理后端不保存/代理 VLM，后台任务不能覆盖手机 provider 配置。
diff --git a/docs/current-state.md b/docs/current-state.md
index 21b3d4f..9fe2194 100644
--- a/docs/current-state.md
+++ b/docs/current-state.md
@@ -5,7 +5,7 @@
 ## 当前快照
 
 - 日期：2026-07-28
-- 阶段：T-215 Admin 候选确认与一次性下单授权进行中
+- 阶段：T-215 Admin 候选确认与一次性下单授权已完成，准备 T-216
 - Git：当前分支为 `main`；T-001 至 T-004、T-101 至 T-104、T-201 至 T-207、T-209、
   T-208、T-210、T-211、T-212、T-213、T-214 均已纳入 Git 历史
 - 生产代码：`android-buyer/` 已接入 Roubao Android 源码
@@ -17,10 +17,10 @@
 - 本机 Android 工具：JDK 17.0.13、Command-line Tools 22.0、SDK 34、
   Build Tools 34.0.0、Platform Tools/ADB 37.0.0；用户级 SDK 环境变量已设置
 - Android Studio：未安装；`winget` 静默安装卡住后已终止，不阻塞命令行构建
-- 测试：T-214 Android 单元测试、Debug/Release 构建和根 `init.ps1` 通过；
+- 测试：T-215 Android 单元测试、Debug/Release 构建和根 `init.ps1` 通过；
   Debug APK `1.4.12 (17)` 已安装并启动于 PKG110
-- 后端测试：T-214 运行 `go test ./...`、`go test -race ./...`、`go vet ./...`、
-  migration `up/down/up` 和带 identity 数据的降级保护均通过
+- 后端测试：T-215 运行 `go test ./...`、`go test -race ./...`、`go vet ./...`；
+  v8 migration 往返、带授权数据的降级保护和 Admin 授权接口集成测试均通过
 - 原型：4 个管理 Web 页面和 7 个 Android 页面均可离线独立打开；Playwright
   以 1440×900、390×844、360×800 验证 36 个页面/视口组合，无页面横向溢出、
   脚本错误或外部请求，Android 可见交互控件均不小于 44px
@@ -64,6 +64,10 @@
   已上传 asset 后，在 v7 表中生成 execution-scoped `candidate_key`。Admin API/Web
   展示 key、指纹、原始 observation、模型/人工结论和截图；缺少真实平台 URL 时保持
   空值，后端不请求第三方 URL。
+- T-215 下单授权：非空候选回传原子进入 `WAITING_CONFIRMATION`；Admin 按
+  candidate key 选择并为全部候选填写结构化理由，服务端在同一事务追加人工 review、
+  不可变授权快照、事件和幂等记录。领取前可按版本改选，已投递后禁改；页面明确仅
+  授权创建设备端待付款订单，不授权付款。
 - Workflow：纯 Kotlin runner 已支持步骤 timeout、最多 3 次 retry、安全阻塞、
   用户停止和单 runner 并发拒绝；T-102 已接入搜索加有界候选采集五步
 - TaskSource：严格 CLI 已生成并验证真实私有 ProbeTask；默认 APK 不含私有 fixture
@@ -92,7 +96,7 @@
   已用 CLI 真实导入并逐字段/图片哈希验证，生成物位于被忽略的 `.local/`
 - 标准启动路径：`$env:RUN_START_COMMAND="1"; .\init.ps1`
 - 标准验证路径：`.\init.ps1`
-- 当前 blocker：T-214 无阻塞。真实 VLM 服务地址、模型、设备级测试凭证、成本上限
+- 当前 blocker：T-215 无阻塞。真实 VLM 服务地址、模型、设备级测试凭证、成本上限
   和数据留存尚未确认；当前只支持单 SKU/JPEG；候选探针截图要求 Android 11/API 30+
 
 ## 当前目录
@@ -123,7 +127,7 @@
 | `docs/tasks/T-213.md` | DONE | 真机选择目标 SKU、读取组合价并安全返回 |
 | `docs/tasks/T-208.md` | DONE | 归一化候选决策数据并增加结构化人工 review |
 | `docs/tasks/T-214.md` | DONE | 建立 execution-scoped candidate key 与设备采集指纹 |
-| `docs/tasks/T-215.md` | DOING | Admin 按 candidate key 选择并创建不可变待投递授权 |
+| `docs/tasks/T-215.md` | DONE | Admin 按 candidate key 选择并创建不可变待投递授权 |
 | `docs/design/` | 已确认 | T-202 原型索引、4 个管理页和 7 个 Android 页面 |
 | `deepseek总结.txt` | 已有 | 历史讨论摘要，不是正式需求权威 |
 | `android-buyer/` | 已有 | Roubao `main` 固定 commit 的 Android 基线 |
@@ -134,8 +138,8 @@
 
 ## 任务摘要
 
-- 已完成：T-001 至 T-004、T-101 至 T-104、T-201 至 T-214。
-- 正在进行：T-215 Admin 候选确认与一次性下单授权。
+- 已完成：T-001 至 T-004、T-101 至 T-104、T-201 至 T-215。
+- 正在进行：准备 T-216 设备命令投递与确认。
 - 下一步：依次实现设备命令、订单 dry-run、单次提交对账和
   付款提醒。
 
diff --git a/docs/tasks/T-215.md b/docs/tasks/T-215.md
index a69d4f4..8b88555 100644
--- a/docs/tasks/T-215.md
+++ b/docs/tasks/T-215.md
@@ -4,7 +4,7 @@ title: Admin 候选确认与一次性下单授权
 phase: 2
 deps:
   - T-214
-status: DOING
+status: DONE
 created: 2026-07-28
 context_ref: 56e7a2b
 work_branch: null
@@ -124,13 +124,13 @@ REVOKED/SUPERSEDED`；T-215 只产生 `PENDING_DELIVERY` 和 `SUPERSEDED`。存
 
 ## 验收要点
 
-- [ ] 非空候选批次原子进入 `WAITING_CONFIRMATION`，重复回传不重复增加事件/version。
-- [ ] Admin 请求只用 candidate key，完整覆盖候选且每项接受/拒绝都有合法理由。
-- [ ] review、授权、旧授权 supersede、任务事件和幂等记录原子提交。
-- [ ] 跨任务/execution、旧 hash/version、伪造 key、缺 identity 和并发双授权被拒绝。
-- [ ] 授权数量/SKU/价格/指纹均由服务端快照，Admin 不能篡改。
-- [ ] Admin API/Web 可选候选、查看证据和理由，明确只创建待付款订单且不授权付款。
-- [ ] v8 migration、Go test/race/vet、根验证和管理页面桌面/移动视口通过。
+- [x] 非空候选批次原子进入 `WAITING_CONFIRMATION`，重复回传不重复增加事件/version。
+- [x] Admin 请求只用 candidate key，完整覆盖候选且每项接受/拒绝都有合法理由。
+- [x] review、授权、旧授权 supersede、任务事件和幂等记录原子提交。
+- [x] 跨任务/execution、旧 hash/version、伪造 key、缺 identity 和并发双授权被拒绝。
+- [x] 授权数量/SKU/价格/指纹均由服务端快照，Admin 不能篡改。
+- [x] Admin API/Web 可选候选、查看证据和理由，明确只创建待付款订单且不授权付款。
+- [x] v8 migration、Go test/race/vet、根验证和管理页面桌面/移动视口通过。
 
 ## 边界
 
@@ -144,3 +144,8 @@ REVOKED/SUPERSEDED`；T-215 只产生 `PENDING_DELIVERY` 和 `SUPERSEDED`。存
 - 2026-07-28：T-214 实现提交 `56e7a2b` 后领取。决定复用
   `WAITING_CONFIRMATION`，并把 Admin review 与一次性授权放在同一事务；设备投递和
   页面动作继续保持为后续独立权限层。
+- 2026-07-28：完成 v8 migration、候选就绪原子状态迁移、Admin API/SSR 表单、
+  不可变授权快照、修订/幂等/并发保护和审计历史。`go test ./...`、
+  `go test -race ./...`、`go vet ./...` 与根 `init.ps1` 通过。
+- 2026-07-28：真实 Gin handler、嵌入模板和 CSS 在 Playwright `1440x900`、
+  `390x844` 通过；均无横向溢出，主要控件高度至少 44px，控制台无错误。