feat: 增加真实采购任务安全模式 (#98)

admin/handler/api/client_api.go

@@ -123,7 +123,7 @@ func (h *Handler) Claim(c *gin.Context) {
 	}
 
 	// 2. 领取一个任务，只会拿到分配给这个客户端的
-	task, err := service.ClaimNextTask(h.db, clientID, req.SupportedTypes)
+	task, err := service.ClaimNextTask(h.db, clientID, req.SupportedTypes, req.Capabilities.PurchaseMode)
 	if err != nil {
 		log.Printf("task_claim_failed client_id=%s err=%v", clientID, err)
 		apiError(c, http.StatusInternalServerError, "TASK_CLAIM_FAILED",
@@ -171,13 +171,14 @@ func taskPayload(t *model.Task) gin.H {
 	}
 
 	return gin.H{
-		"id":         t.TaskID,
-		"type":       t.TaskType,
-		"version":    t.Version,
-		"priority":   t.Priority,
-		"payload":    payload,
-		"created_at": t.CreatedAt,
-		"updated_at": t.UpdatedAt,
+		"id":             t.TaskID,
+		"type":           t.TaskType,
+		"execution_mode": t.ExecutionMode,
+		"version":        t.Version,
+		"priority":       t.Priority,
+		"payload":        payload,
+		"created_at":     t.CreatedAt,
+		"updated_at":     t.UpdatedAt,
 	}
 }
 

admin/handler/api/client_api_test.go

@@ -0,0 +1,14 @@
+package api
+
+import (
+	"testing"
+
+	"cmautobuy/admin/model"
+)
+
+func TestTaskPayload_包含不可变执行模式(t *testing.T) {
+	payload := taskPayload(&model.Task{TaskID: "T-1", TaskType: model.TaskPurchase, ExecutionMode: model.TaskExecutionLive})
+	if payload["execution_mode"] != model.TaskExecutionLive {
+		t.Fatalf("execution_mode=%v", payload["execution_mode"])
+	}
+}

admin/handler/web/others.go

@@ -630,7 +630,12 @@ func (h *Handler) SybCreateTask(c *gin.Context) {
 		}
 		requests = append(requests, service.PurchaseTaskRequest{SybID: sybID, MaxPriceCent: cent})
 	}
-	result, err := service.CreatePurchaseTasks(h.db, currentUser(c), requests, c.PostForm("client_id"))
+	result, err := service.CreatePurchaseTasksWithOptions(h.db, currentUser(c), requests, service.PurchaseTaskOptions{
+		ClientID:         c.PostForm("client_id"),
+		ExecutionMode:    model.TaskExecutionMode(c.PostForm("execution_mode")),
+		LiveAcknowledged: c.PostForm("live_acknowledged") == "1",
+		LiveConfirmation: c.PostForm("live_confirmation"),
+	})
 	if err != nil {
 		h.sybRedirect(c, "采购任务没有创建："+err.Error())
 		return

admin/model/model.go

@@ -313,17 +313,27 @@ const (
 	TaskCancelled    TaskStatus = "cancelled"     // 已取消
 )
 
+// TaskExecutionMode 区分只演练流程和会在拼多多创建未付款订单的真实流程。
+// 模式在任务创建时确定，后续取消、重派和结果回传都不得修改。
+type TaskExecutionMode string
+
+const (
+	TaskExecutionDryRun TaskExecutionMode = "dry_run"
+	TaskExecutionLive   TaskExecutionMode = "live"
+)
+
 // Task 是发给 Client 执行的一个任务。
 //
 // PddGoodsURL 必填——Client 那边是 NOT NULL，空了它执行不了。
 // 采购任务的 Quantity 和 MaxPriceCent 也必填，这是价格保护，
 // 见 docs/client/04-admin-api-contract.md §4。
 type Task struct {
-	TaskID   string
-	TaskType TaskType
-	Status   TaskStatus
-	Version  int
-	Priority int
+	TaskID        string
+	TaskType      TaskType
+	Status        TaskStatus
+	ExecutionMode TaskExecutionMode
+	Version       int
+	Priority      int
 
 	AssignedClient string
 	ClaimedAt      string
@@ -344,6 +354,9 @@ type Task struct {
 	ErrorMessage string
 	FinishedAt   string
 
+	LiveConfirmedBy string
+	LiveConfirmedAt string
+
 	CreatedAt string
 	UpdatedAt string
 }

admin/repository/client.go

@@ -2,6 +2,7 @@ package repository
 
 import (
 	"database/sql"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"strings"
@@ -9,6 +10,29 @@ import (
 	"cmautobuy/admin/model"
 )
 
+// ClientPurchaseMode 返回客户端最后一次登记时声明的采购能力。
+// 旧数据、空值或无法解析的 JSON 一律按 dry_run 处理，这是安全默认值。
+func ClientPurchaseMode(q Execer, clientID string) (string, error) {
+	var raw sql.NullString
+	if err := q.QueryRow(`SELECT capabilities FROM clients WHERE client_id = ?`, clientID).Scan(&raw); errors.Is(err, sql.ErrNoRows) {
+		return "", ErrClientNotFound
+	} else if err != nil {
+		return "", fmt.Errorf("读取客户端 %s 的采购能力失败: %w", clientID, err)
+	}
+	return ParseClientPurchaseMode(raw.String), nil
+}
+
+// ParseClientPurchaseMode 把登记能力转成安全的固定值，供列表和创建校验共用。
+func ParseClientPurchaseMode(raw string) string {
+	var capabilities struct {
+		PurchaseMode string `json:"purchase_mode"`
+	}
+	if json.Unmarshal([]byte(raw), &capabilities) == nil && capabilities.PurchaseMode == string(model.TaskExecutionLive) {
+		return capabilities.PurchaseMode
+	}
+	return string(model.TaskExecutionDryRun)
+}
+
 var (
 	ErrClientNotFound     = errors.New("客户端不存在")
 	ErrPurchaserNotActive = errors.New("采购员不存在或已禁用")

admin/repository/mysql_db.go

@@ -19,7 +19,7 @@ import (
 	"cmautobuy/admin/spec"
 )
 
-const mysqlSchemaVersion = 4
+const mysqlSchemaVersion = 5
 
 // OpenMySQL 打开生产 MySQL 8 数据库。错误信息绝不包含完整 DSN 或密码。
 func OpenMySQL(cfg config.DatabaseConfig) (*sql.DB, error) {
@@ -471,10 +471,77 @@ func MigrateMySQL(db *sql.DB) error {
 		if _, err := db.Exec(`INSERT INTO schema_migrations (version, applied_at) VALUES (?, ?)`, 4, time.Now().UTC().Format(time.RFC3339Nano)); err != nil {
 			return fmt.Errorf("记录 MySQL schema v4 失败: %w", err)
 		}
+		current = 4
+	}
+	if current < 5 {
+		if err := migrateMySQLV5(db); err != nil {
+			return fmt.Errorf("执行 MySQL schema v5 失败: %w", err)
+		}
+		if err := checkMySQLV5Shape(db); err != nil {
+			return fmt.Errorf("MySQL schema v5 自检失败，未记录版本: %w", err)
+		}
+		if _, err := db.Exec(`INSERT INTO schema_migrations (version, applied_at) VALUES (?, ?)`, 5, time.Now().UTC().Format(time.RFC3339Nano)); err != nil {
+			return fmt.Errorf("记录 MySQL schema v5 失败: %w", err)
+		}
 	}
 	return CheckMySQLSchema(db)
 }
 
+// migrateMySQLV5 给任务增加不可变执行模式和真实下单创建审计。
+// 每条 DDL 都先检查存在性，MySQL 在任意一步隐式提交后都可以安全重放。
+func migrateMySQLV5(db *sql.DB) error {
+	columns := []struct {
+		name string
+		ddl  string
+	}{
+		{"execution_mode", `ALTER TABLE tasks ADD COLUMN execution_mode VARCHAR(16) COLLATE utf8mb4_bin NOT NULL DEFAULT 'dry_run' AFTER status`},
+		{"live_confirmed_by", `ALTER TABLE tasks ADD COLUMN live_confirmed_by VARCHAR(191) COLLATE utf8mb4_bin NULL AFTER finished_at`},
+		{"live_confirmed_at", `ALTER TABLE tasks ADD COLUMN live_confirmed_at VARCHAR(35) NULL AFTER live_confirmed_by`},
+	}
+	for _, column := range columns {
+		exists, err := mysqlColumnExists(db, "tasks", column.name)
+		if err != nil {
+			return err
+		}
+		if !exists {
+			if _, err := db.Exec(column.ddl); err != nil {
+				return fmt.Errorf("增加 tasks.%s 失败: %w", column.name, err)
+			}
+		}
+	}
+	if _, err := db.Exec(`UPDATE tasks SET execution_mode='dry_run' WHERE execution_mode IS NULL OR execution_mode=''`); err != nil {
+		return fmt.Errorf("回填任务执行模式失败: %w", err)
+	}
+	constraints := []struct {
+		name string
+		ddl  string
+	}{
+		{"chk_tasks_execution_mode", `ALTER TABLE tasks ADD CONSTRAINT chk_tasks_execution_mode CHECK (execution_mode IN ('dry_run','live'))`},
+		{"chk_tasks_live_confirmation", `ALTER TABLE tasks ADD CONSTRAINT chk_tasks_live_confirmation CHECK ((execution_mode='dry_run' AND live_confirmed_by IS NULL AND live_confirmed_at IS NULL) OR (execution_mode='live' AND live_confirmed_by IS NOT NULL AND live_confirmed_by<>'' AND live_confirmed_at IS NOT NULL AND live_confirmed_at<>''))`},
+	}
+	for _, constraint := range constraints {
+		exists, err := mysqlConstraintExists(db, "tasks", constraint.name)
+		if err != nil {
+			return err
+		}
+		if !exists {
+			if _, err := db.Exec(constraint.ddl); err != nil {
+				return fmt.Errorf("增加 tasks.%s 失败: %w", constraint.name, err)
+			}
+		}
+	}
+	indexExists, err := mysqlIndexExists(db, "tasks", "idx_tasks_claim_mode")
+	if err != nil {
+		return err
+	}
+	if !indexExists {
+		if _, err := db.Exec(`ALTER TABLE tasks ADD INDEX idx_tasks_claim_mode (assigned_client, status, execution_mode, priority DESC, created_at)`); err != nil {
+			return fmt.Errorf("增加任务模式领取索引失败: %w", err)
+		}
+	}
+	return nil
+}
+
 func checkMySQLSchemaV3(db *sql.DB) error {
 	tables := []string{"shopee_products", "shopee_skus", "pdd_products", "syb_orders", "spec_mappings", "tasks", "clients", "idempotency_keys", "task_claims", "syb_session", "syb_sync_state", "users", "web_sessions", "client_user_assignments", "syb_sync_runs", "admin_initialization_lock"}
 	if err := checkMySQLSchema(db, tables); err != nil {
@@ -563,6 +630,15 @@ func mysqlConstraintExists(db *sql.DB, table, constraint string) (bool, error) {
 	return count == 1, nil
 }
 
+func mysqlIndexExists(db *sql.DB, table, index string) (bool, error) {
+	var count int
+	if err := db.QueryRow(`SELECT COUNT(DISTINCT index_name) FROM information_schema.statistics
+		WHERE table_schema=DATABASE() AND table_name=? AND index_name=?`, table, index).Scan(&count); err != nil {
+		return false, fmt.Errorf("检查 MySQL 索引 %s.%s 失败: %w", table, index, err)
+	}
+	return count == 1, nil
+}
+
 func backfillSybSpecKeys(db *sql.DB) error {
 	const batchSize = 500
 	cursor := ""
@@ -729,7 +805,65 @@ func CheckMySQLSchema(db *sql.DB) error {
 	if err := checkMySQLV3Shape(db); err != nil {
 		return err
 	}
-	return checkMySQLV4Shape(db)
+	if err := checkMySQLV4Shape(db); err != nil {
+		return err
+	}
+	return checkMySQLV5Shape(db)
+}
+
+func checkMySQLV5Shape(db *sql.DB) error {
+	if err := checkMySQLVarcharColumn(db, "tasks", "execution_mode", 16, false, "utf8mb4_bin", "dry_run"); err != nil {
+		return err
+	}
+	if err := checkMySQLVarcharColumn(db, "tasks", "live_confirmed_by", 191, true, "utf8mb4_bin", ""); err != nil {
+		return err
+	}
+	if err := checkMySQLNullDefault(db, "tasks", "live_confirmed_by"); err != nil {
+		return err
+	}
+	if err := checkMySQLVarcharColumn(db, "tasks", "live_confirmed_at", 35, true, "utf8mb4_0900_ai_ci", ""); err != nil {
+		return err
+	}
+	if err := checkMySQLNullDefault(db, "tasks", "live_confirmed_at"); err != nil {
+		return err
+	}
+	for _, check := range []struct {
+		name     string
+		required []string
+	}{
+		{"chk_tasks_execution_mode", []string{"execution_modein'dry_run','live'"}},
+		{"chk_tasks_live_confirmation", []string{"execution_mode='dry_run'", "live_confirmed_byisnull", "live_confirmed_atisnull", "execution_mode='live'", "live_confirmed_byisnotnull", "live_confirmed_by<>''", "live_confirmed_atisnotnull", "live_confirmed_at<>''"}},
+	} {
+		var enforced, clause string
+		if err := db.QueryRow(`SELECT tc.enforced,cc.check_clause FROM information_schema.table_constraints tc JOIN information_schema.check_constraints cc ON cc.constraint_schema=tc.constraint_schema AND cc.constraint_name=tc.constraint_name WHERE tc.constraint_schema=DATABASE() AND tc.table_name='tasks' AND tc.constraint_name=? AND tc.constraint_type='CHECK'`, check.name).Scan(&enforced, &clause); err != nil {
+			return fmt.Errorf("任务 CHECK %s 缺失或不可读: %w", check.name, err)
+		}
+		normalized := strings.NewReplacer("`", "", " ", "", "(", "", ")", "", "_utf8mb4", "", `\`, "").Replace(strings.ToLower(clause))
+		if enforced != "YES" {
+			return fmt.Errorf("任务 CHECK %s 未启用", check.name)
+		}
+		for _, fragment := range check.required {
+			if !strings.Contains(normalized, fragment) {
+				return fmt.Errorf("任务 CHECK %s 表达式不正确", check.name)
+			}
+		}
+	}
+	var cols string
+	if err := db.QueryRow(`SELECT GROUP_CONCAT(CONCAT(column_name,':',collation) ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema=DATABASE() AND table_name='tasks' AND index_name='idx_tasks_claim_mode'`).Scan(&cols); err != nil || cols != "assigned_client:A,status:A,execution_mode:A,priority:D,created_at:A" {
+		return fmt.Errorf("任务模式领取索引不正确")
+	}
+	return nil
+}
+
+func checkMySQLNullDefault(db *sql.DB, table, column string) error {
+	var defaultValue sql.NullString
+	if err := db.QueryRow(`SELECT column_default FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name=? AND column_name=?`, table, column).Scan(&defaultValue); err != nil {
+		return fmt.Errorf("检查 MySQL 列 %s.%s 默认值失败: %w", table, column, err)
+	}
+	if defaultValue.Valid {
+		return fmt.Errorf("MySQL 列 %s.%s 默认值应为 NULL", table, column)
+	}
+	return nil
 }
 
 func checkMySQLV4Shape(db *sql.DB) error {

admin/repository/mysql_db_integration_test.go

@@ -232,6 +232,60 @@ func TestMySQLMigrate_V4形状错误不记版本(t *testing.T) {
 	}
 }
 
+func TestMySQLMigrate_V4升级V5且断点重跑(t *testing.T) {
+	db := openMySQLMigrationTestDB(t)
+	defer db.Close()
+	cleanMySQLTestSchema(t, db)
+	defer cleanMySQLTestSchema(t, db)
+	prepareMySQLV4(t, db)
+	// 模拟全部 DDL 已完成但版本尚未记录。
+	if err := migrateMySQLV5(db); err != nil {
+		t.Fatal(err)
+	}
+	if err := MigrateMySQL(db); err != nil {
+		t.Fatal(err)
+	}
+	if err := MigrateMySQL(db); err != nil {
+		t.Fatalf("v5 重跑失败: %v", err)
+	}
+	var versions int
+	if err := db.QueryRow(`SELECT COUNT(*) FROM schema_migrations WHERE version=5`).Scan(&versions); err != nil || versions != 1 {
+		t.Fatalf("v5=%d err=%v", versions, err)
+	}
+	now := "2026-08-10T00:00:00Z"
+	mustExec(t, db, `INSERT INTO tasks(task_id,task_type,status,pdd_goods_url,created_at,updated_at) VALUES('OLD','collect','pending','https://example.invalid',?,?)`, now, now)
+	var mode string
+	if err := db.QueryRow(`SELECT execution_mode FROM tasks WHERE task_id='OLD'`).Scan(&mode); err != nil || mode != "dry_run" {
+		t.Fatalf("历史/缺省任务模式=%q err=%v", mode, err)
+	}
+	if _, err := db.Exec(`UPDATE tasks SET execution_mode='invalid' WHERE task_id='OLD'`); err == nil {
+		t.Fatal("执行模式 CHECK 必须拒绝非法值")
+	}
+	if _, err := db.Exec(`UPDATE tasks SET execution_mode='live' WHERE task_id='OLD'`); err == nil {
+		t.Fatal("缺少确认审计的 live 必须被拒绝")
+	}
+	if _, err := db.Exec(`UPDATE tasks SET live_confirmed_by='U',live_confirmed_at=? WHERE task_id='OLD'`, now); err == nil {
+		t.Fatal("dry_run 不得携带 live 确认审计")
+	}
+}
+
+func TestMySQLMigrate_V5形状错误不记版本(t *testing.T) {
+	db := openMySQLMigrationTestDB(t)
+	defer db.Close()
+	cleanMySQLTestSchema(t, db)
+	defer cleanMySQLTestSchema(t, db)
+	prepareMySQLV4(t, db)
+	mustExec(t, db, `ALTER TABLE tasks ADD COLUMN execution_mode VARCHAR(8) NOT NULL DEFAULT 'dry_run'`)
+	if err := MigrateMySQL(db); err == nil {
+		t.Fatal("错误 execution_mode 形状必须阻止 v5")
+	}
+	var count int
+	db.QueryRow(`SELECT COUNT(*) FROM schema_migrations WHERE version=5`).Scan(&count)
+	if count != 0 {
+		t.Fatal("v5 自检失败不得记录版本")
+	}
+}
+
 func openMySQLMigrationTestDB(t *testing.T) *sql.DB {
 	t.Helper()
 	if os.Getenv("CMAUTOBUY_MYSQL_TEST") != "1" {
@@ -263,6 +317,16 @@ func prepareMySQLV2(t *testing.T, db *sql.DB) {
 	mustExec(t, db, `INSERT INTO schema_migrations(version,applied_at) VALUES (1,'2026-08-10T00:00:00Z'),(2,'2026-08-10T00:00:00Z')`)
 }
 
+func prepareMySQLV4(t *testing.T, db *sql.DB) {
+	t.Helper()
+	prepareMySQLV2(t, db)
+	if err := migrateMySQLV3(db); err != nil {
+		t.Fatal(err)
+	}
+	mustExec(t, db, mysqlSchemaV4Decisions)
+	mustExec(t, db, `INSERT INTO schema_migrations(version,applied_at) VALUES (3,'2026-08-10T00:00:00Z'),(4,'2026-08-10T00:00:00Z')`)
+}
+
 func mustExec(t *testing.T, db *sql.DB, query string, args ...any) {
 	t.Helper()
 	if _, err := db.Exec(query, args...); err != nil {

admin/repository/task.go

@@ -30,10 +30,17 @@ import (
 //
 // InnoDB 事务用 FOR UPDATE SKIP LOCKED 锁住一条候选任务。领取状态和
 // task_claims 历史在同一个事务提交，避免只改了状态却没留下领取凭据。
-func ClaimNextTask(db *sql.DB, clientID string, supportedTypes []string) (*model.Task, error) {
+func ClaimNextTask(db *sql.DB, clientID string, supportedTypes []string, purchaseModes ...string) (*model.Task, error) {
 	if clientID == "" {
 		return nil, fmt.Errorf("client_id 不能为空")
 	}
+	purchaseMode := string(model.TaskExecutionDryRun)
+	if len(purchaseModes) > 0 {
+		purchaseMode = purchaseModes[0]
+	}
+	if purchaseMode != string(model.TaskExecutionDryRun) && purchaseMode != string(model.TaskExecutionLive) {
+		return nil, fmt.Errorf("purchase_mode 必须是 dry_run 或 live")
+	}
 	ctx := context.Background()
 	tx, err := db.BeginTx(ctx, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
 	if err != nil {
@@ -45,6 +52,11 @@ func ClaimNextTask(db *sql.DB, clientID string, supportedTypes []string) (*model
 	          WHERE (   (assigned_client = ?    AND status = 'assigned')
 	                 OR (assigned_client IS NULL AND status = 'pending') )`
 	args := []any{clientID}
+	// dry_run 客户端永远看不到真实采购任务。声明 live 的客户端仍可执行
+	// 演练任务，避免它在没有真实任务时闲置。
+	if purchaseMode != string(model.TaskExecutionLive) {
+		query += ` AND execution_mode = 'dry_run'`
+	}
 
 	// 客户端只声明支持某些类型时，不要给它别的类型
 	if len(supportedTypes) > 0 {
@@ -101,23 +113,26 @@ func GetTask(db *sql.DB, taskID string) (*model.Task, error) {
 	var t model.Task
 	var assigned, claimedAt, sybID, orderNo, goodsID, skuID sql.NullString
 	var pddGoodsID, pddOptions, resultData, errCode, errMsg, finishedAt sql.NullString
+	var liveConfirmedBy, liveConfirmedAt sql.NullString
 	var quantity, maxPrice sql.NullInt64
 
 	err := db.QueryRow(`
-		SELECT task_id, task_type, status, version, priority,
+		SELECT task_id, task_type, status, execution_mode, version, priority,
 		       assigned_client, claimed_at,
 		       syb_id, order_no, goods_id, shopee_sku_id,
 		       pdd_goods_url, pdd_goods_id, pdd_options,
 		       quantity, max_price_cent,
 		       result_data, error_code, error_message, finished_at,
+		       live_confirmed_by, live_confirmed_at,
 		       created_at, updated_at
 		FROM tasks WHERE task_id = ?`, taskID).Scan(
-		&t.TaskID, &t.TaskType, &t.Status, &t.Version, &t.Priority,
+		&t.TaskID, &t.TaskType, &t.Status, &t.ExecutionMode, &t.Version, &t.Priority,
 		&assigned, &claimedAt,
 		&sybID, &orderNo, &goodsID, &skuID,
 		&t.PddGoodsURL, &pddGoodsID, &pddOptions,
 		&quantity, &maxPrice,
 		&resultData, &errCode, &errMsg, &finishedAt,
+		&liveConfirmedBy, &liveConfirmedAt,
 		&t.CreatedAt, &t.UpdatedAt)
 	if err == sql.ErrNoRows {
 		return nil, nil
@@ -140,6 +155,8 @@ func GetTask(db *sql.DB, taskID string) (*model.Task, error) {
 	t.ErrorCode = errCode.String
 	t.ErrorMessage = errMsg.String
 	t.FinishedAt = finishedAt.String
+	t.LiveConfirmedBy = liveConfirmedBy.String
+	t.LiveConfirmedAt = liveConfirmedAt.String
 	return &t, nil
 }
 
@@ -269,6 +286,7 @@ type TaskListRow struct {
 	TaskID         string
 	TaskType       model.TaskType
 	Status         model.TaskStatus
+	ExecutionMode  model.TaskExecutionMode
 	AssignedClient string // 空表示无主任务
 
 	OrderNo      string
@@ -323,7 +341,7 @@ func taskFilterClause(filter TaskFilter) (string, []any) {
 func ListTasks(q Execer, filter TaskFilter, limit, offset int) ([]TaskListRow, error) {
 	where, args := taskFilterClause(filter)
 	sqlText := `
-		SELECT t.task_id, t.task_type, t.status, t.assigned_client,
+		SELECT t.task_id, t.task_type, t.status, t.execution_mode, t.assigned_client,
 		       t.order_no, t.pdd_goods_id, t.pdd_options, t.quantity, t.max_price_cent,
 		       t.updated_at, p.title
 		  FROM tasks t
@@ -345,7 +363,7 @@ func ListTasks(q Execer, filter TaskFilter, limit, offset int) ([]TaskListRow, e
 		var quantity, maxPrice sql.NullInt64
 
 		if err := rows.Scan(
-			&r.TaskID, &r.TaskType, &r.Status, &assigned,
+			&r.TaskID, &r.TaskType, &r.Status, &r.ExecutionMode, &assigned,
 			&orderNo, &pddGoodsID, &pddOptions, &quantity, &maxPrice,
 			&r.UpdatedAt, &title,
 		); err != nil {
@@ -465,17 +483,34 @@ func InsertPurchaseTask(q Execer, task model.Task) error {
 		task.Quantity <= 0 || task.MaxPriceCent <= 0 {
 		return fmt.Errorf("采购任务缺少客户端、商品、规格、数量或人民币价格上限")
 	}
+	if task.ExecutionMode == "" {
+		task.ExecutionMode = model.TaskExecutionDryRun
+	}
+	if task.ExecutionMode != model.TaskExecutionDryRun && task.ExecutionMode != model.TaskExecutionLive {
+		return fmt.Errorf("采购任务执行模式无效")
+	}
+	if task.ExecutionMode == model.TaskExecutionLive &&
+		(strings.TrimSpace(task.LiveConfirmedBy) == "" || strings.TrimSpace(task.LiveConfirmedAt) == "") {
+		return fmt.Errorf("真实采购任务缺少创建确认审计信息")
+	}
+	if task.ExecutionMode == model.TaskExecutionDryRun {
+		task.LiveConfirmedBy = ""
+		task.LiveConfirmedAt = ""
+	}
 	now := model.NowISO()
+	liveConfirmedBy := sql.NullString{String: task.LiveConfirmedBy, Valid: task.LiveConfirmedBy != ""}
+	liveConfirmedAt := sql.NullString{String: task.LiveConfirmedAt, Valid: task.LiveConfirmedAt != ""}
 	_, err := q.Exec(`
 		INSERT INTO tasks
-		       (task_id, task_type, status, assigned_client,
+		       (task_id, task_type, status, execution_mode, assigned_client,
 		        syb_id, order_no, goods_id, shopee_sku_id,
 		        pdd_goods_url, pdd_goods_id, pdd_options,
-		        quantity, max_price_cent, created_at, updated_at)
-		VALUES (?, 'purchase', 'assigned', ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
-		task.TaskID, task.AssignedClient, task.SybID, task.OrderNo,
+		        quantity, max_price_cent, live_confirmed_by, live_confirmed_at,
+		        created_at, updated_at)
+		VALUES (?, 'purchase', 'assigned', ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+		task.TaskID, task.ExecutionMode, task.AssignedClient, task.SybID, task.OrderNo,
 		task.GoodsID, task.ShopeeSKUID, task.PddGoodsURL, task.PddGoodsID,
-		task.PddOptions, task.Quantity, task.MaxPriceCent, now, now)
+		task.PddOptions, task.Quantity, task.MaxPriceCent, liveConfirmedBy, liveConfirmedAt, now, now)
 	if err != nil {
 		return fmt.Errorf("创建顺运宝明细 %s 的采购任务失败: %w", task.SybID, err)
 	}

admin/service/execution_mode_test.go

@@ -0,0 +1,49 @@
+package service
+
+import (
+	"database/sql"
+	"testing"
+
+	"cmautobuy/admin/model"
+)
+
+func insertLiveTask(t *testing.T, db *sql.DB, taskID, clientID string) {
+	t.Helper()
+	now := model.NowISO()
+	_, err := db.Exec(`INSERT INTO tasks
+		(task_id,task_type,status,execution_mode,assigned_client,pdd_goods_url,
+		 pdd_goods_id,pdd_options,quantity,max_price_cent,live_confirmed_by,
+		 live_confirmed_at,created_at,updated_at)
+		VALUES (?,'purchase','assigned','live',?,'https://example.invalid/1','1',
+		'{"color":"黑色"}',1,100,'USER-1',?,?,?)`, taskID, clientID, now, now, now)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestClaimNextTask_按客户端真实采购能力隔离(t *testing.T) {
+	db := newTestDB(t)
+	insertLiveTask(t, db, "TASK-LIVE", "CLIENT-1")
+	if task, err := ClaimNextTask(db, "CLIENT-1", []string{"purchase"}, "dry_run"); err != nil || task != nil {
+		t.Fatalf("dry_run 客户端不应看见 live 任务: task=%+v err=%v", task, err)
+	}
+	task, err := ClaimNextTask(db, "CLIENT-1", []string{"purchase"}, "live")
+	if err != nil || task == nil || task.ExecutionMode != model.TaskExecutionLive {
+		t.Fatalf("live 客户端应领到 live 任务: task=%+v err=%v", task, err)
+	}
+}
+
+func TestTaskExecutionMode_取消和重派不改变模式(t *testing.T) {
+	db := newTestDB(t)
+	insertLiveTask(t, db, "TASK-IMMUTABLE", "CLIENT-1")
+	if _, err := db.Exec(`UPDATE tasks SET status='cancelled',updated_at=? WHERE task_id='TASK-IMMUTABLE'`, model.NowISO()); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := db.Exec(`UPDATE tasks SET status='assigned',assigned_client='CLIENT-2',updated_at=? WHERE task_id='TASK-IMMUTABLE'`, model.NowISO()); err != nil {
+		t.Fatal(err)
+	}
+	var mode string
+	if err := db.QueryRow(`SELECT execution_mode FROM tasks WHERE task_id='TASK-IMMUTABLE'`).Scan(&mode); err != nil || mode != "live" {
+		t.Fatalf("取消/重派后模式=%q err=%v", mode, err)
+	}
+}

admin/service/purchase_workflow.go

@@ -161,20 +161,42 @@ type PurchaseTaskRequest struct {
 	MaxPriceCent int64
 }
 
+const LivePurchaseConfirmation = "创建未付款订单"
+
+// PurchaseTaskOptions 是一次批量创建共用的执行门禁。
+// ExecutionMode 留空表示 dry_run，确保旧调用和普通操作都保持安全默认值。
+type PurchaseTaskOptions struct {
+	ClientID         string
+	ExecutionMode    model.TaskExecutionMode
+	LiveAcknowledged bool
+	LiveConfirmation string
+}
+
 // PurchaseTaskResult 同时返回已创建数量和每条无法创建的原因。
 type PurchaseTaskResult struct {
 	Created  int
 	Failures []TaskCreateError
 }
 
-// CreatePurchaseTasks 校验并创建采购任务。业务校验失败按明细返回，数据库错误整体回滚。
+// CreatePurchaseTasks 保留旧调用入口；未传执行模式时必须安全地创建演练任务。
 func CreatePurchaseTasks(db *sql.DB, actor *model.User, requests []PurchaseTaskRequest, clientID string) (PurchaseTaskResult, error) {
+	return CreatePurchaseTasksWithOptions(db, actor, requests, PurchaseTaskOptions{ClientID: clientID})
+}
+
+// CreatePurchaseTasksWithOptions 校验并创建采购任务。业务校验失败按明细返回，数据库错误整体回滚。
+func CreatePurchaseTasksWithOptions(db *sql.DB, actor *model.User, requests []PurchaseTaskRequest, options PurchaseTaskOptions) (PurchaseTaskResult, error) {
 	var result PurchaseTaskResult
+	if actor == nil {
+		return result, ErrUnauthenticated
+	}
+	if actor.Status != model.UserActive {
+		return result, fmt.Errorf("当前账号不是正常状态，不能创建采购任务")
+	}
 	visibleUserID, err := visibleClientUserID(actor)
 	if err != nil {
 		return result, err
 	}
-	clientID = strings.TrimSpace(clientID)
+	clientID := strings.TrimSpace(options.ClientID)
 	if clientID == "" {
 		return result, fmt.Errorf("请选择执行采购任务的客户端")
 	}
@@ -190,6 +212,27 @@ func CreatePurchaseTasks(db *sql.DB, actor *model.User, requests []PurchaseTaskR
 	if !visible {
 		return result, fmt.Errorf("所选客户端不存在或不在当前账号可见范围")
 	}
+	executionMode := options.ExecutionMode
+	if executionMode == "" {
+		executionMode = model.TaskExecutionDryRun
+	}
+	if executionMode != model.TaskExecutionDryRun && executionMode != model.TaskExecutionLive {
+		return result, fmt.Errorf("执行模式无效，请选择采购演练或真实下单")
+	}
+	confirmedBy, confirmedAt := "", ""
+	if executionMode == model.TaskExecutionLive {
+		if !options.LiveAcknowledged || strings.TrimSpace(options.LiveConfirmation) != LivePurchaseConfirmation {
+			return result, fmt.Errorf("真实下单必须勾选风险确认并输入“%s”", LivePurchaseConfirmation)
+		}
+		purchaseMode, err := repository.ClientPurchaseMode(tx, clientID)
+		if err != nil {
+			return result, err
+		}
+		if purchaseMode != string(model.TaskExecutionLive) {
+			return result, fmt.Errorf("所选客户端未声明 live 能力，不能执行真实采购任务")
+		}
+		confirmedBy, confirmedAt = actor.UserID, model.NowISO()
+	}
 
 	seen := map[string]bool{}
 	for _, request := range requests {
@@ -211,6 +254,7 @@ func CreatePurchaseTasks(db *sql.DB, actor *model.User, requests []PurchaseTaskR
 		}
 		if err := repository.InsertPurchaseTask(tx, model.Task{
 			TaskID: newPurchaseTaskID(), AssignedClient: clientID,
+			ExecutionMode: executionMode, LiveConfirmedBy: confirmedBy, LiveConfirmedAt: confirmedAt,
 			SybID: context.Order.SybID, OrderNo: context.Order.OrderNo,
 			GoodsID:     context.Order.ShopeeGoodsID,
 			PddGoodsURL: context.PddGoodsURL, PddGoodsID: context.PddGoodsID,

admin/service/purchase_workflow_test.go

@@ -3,6 +3,7 @@ package service
 import (
 	"database/sql"
 	"errors"
+	"strings"
 	"testing"
 	"time"
 
@@ -369,6 +370,62 @@ func TestCreatePurchaseTasks_部分业务失败不影响有效明细(t *testing.
 	}
 }
 
+func TestCreatePurchaseTasksWithOptions_正常采购员可创建真实任务(t *testing.T) {
+	db := newTestDB(t)
+	key := seedPurchasableWorkflow(t, db, "SYB-LIVE")
+	SaveSybMapping(db, "SYB-LIVE", key, "USR-1")
+	admin, buyer, _ := prepareClientAssignmentUsers(t, db)
+	if err := RegisterClient(db, model.Client{ClientID: "CLIENT-LIVE", Capabilities: `{"purchase_mode":"live"}`}, true); err != nil {
+		t.Fatal(err)
+	}
+	if _, _, err := AssignClient(db, admin, "CLIENT-LIVE", buyer.UserID, time.Now()); err != nil {
+		t.Fatal(err)
+	}
+
+	result, err := CreatePurchaseTasksWithOptions(db, buyer,
+		[]PurchaseTaskRequest{{SybID: "SYB-LIVE", MaxPriceCent: 4200}},
+		PurchaseTaskOptions{ClientID: "CLIENT-LIVE", ExecutionMode: model.TaskExecutionLive,
+			LiveAcknowledged: true, LiveConfirmation: LivePurchaseConfirmation})
+	if err != nil || result.Created != 1 {
+		t.Fatalf("正常采购员创建真实任务失败: result=%+v err=%v", result, err)
+	}
+	var mode, confirmedBy string
+	var confirmedAt sql.NullString
+	if err := db.QueryRow(`SELECT execution_mode,live_confirmed_by,live_confirmed_at FROM tasks WHERE syb_id='SYB-LIVE'`).Scan(&mode, &confirmedBy, &confirmedAt); err != nil {
+		t.Fatal(err)
+	}
+	if mode != "live" || confirmedBy != buyer.UserID || !confirmedAt.Valid {
+		t.Fatalf("真实任务审计不完整: mode=%s by=%s at=%+v", mode, confirmedBy, confirmedAt)
+	}
+}
+
+func TestCreatePurchaseTasksWithOptions_真实模式安全门禁(t *testing.T) {
+	db := newTestDB(t)
+	key := seedPurchasableWorkflow(t, db, "SYB-GATE")
+	SaveSybMapping(db, "SYB-GATE", key, "USR-1")
+	admin, _, _ := prepareClientAssignmentUsers(t, db)
+	RegisterClient(db, model.Client{ClientID: "CLIENT-DRY", Capabilities: `{"purchase_mode":"dry_run"}`}, true)
+	request := []PurchaseTaskRequest{{SybID: "SYB-GATE", MaxPriceCent: 4200}}
+
+	if _, err := CreatePurchaseTasksWithOptions(db, admin, request, PurchaseTaskOptions{
+		ClientID: "CLIENT-DRY", ExecutionMode: model.TaskExecutionLive,
+		LiveAcknowledged: true, LiveConfirmation: LivePurchaseConfirmation,
+	}); err == nil || !strings.Contains(err.Error(), "未声明 live") {
+		t.Fatalf("dry_run 客户端必须被拒绝: %v", err)
+	}
+	if _, err := CreatePurchaseTasksWithOptions(db, admin, request, PurchaseTaskOptions{
+		ClientID: "CLIENT-DRY", ExecutionMode: model.TaskExecutionLive,
+		LiveAcknowledged: true, LiveConfirmation: "错误短语",
+	}); err == nil || !strings.Contains(err.Error(), "必须勾选") {
+		t.Fatalf("错误确认短语必须被拒绝: %v", err)
+	}
+	disabled := *admin
+	disabled.Status = model.UserDisabled
+	if _, err := CreatePurchaseTasks(db, &disabled, request, "CLIENT-DRY"); err == nil || !strings.Contains(err.Error(), "不是正常状态") {
+		t.Fatalf("禁用账号必须被拒绝: %v", err)
+	}
+}
+
 func TestParsePriceYuanToCent_精确转换(t *testing.T) {
 	for raw, want := range map[string]int64{"39.90": 3990, "1": 100, "0.01": 1, "12.3": 1230} {
 		got, err := ParsePriceYuanToCent(raw)

admin/service/service.go

@@ -92,6 +92,7 @@ func TouchClient(db *sql.DB, clientID string) error {
 type ClientView struct {
 	model.Client
 	Status           string
+	PurchaseMode     string
 	AssignedUserID   string
 	AssignedUsername string
 }
@@ -136,6 +137,7 @@ func listClientViews(db *sql.DB, keyword, visibleUserID string, threshold time.D
 		views = append(views, ClientView{
 			Client:           c.Client,
 			Status:           c.StatusText(now, threshold),
+			PurchaseMode:     repository.ParseClientPurchaseMode(c.Capabilities),
 			AssignedUserID:   c.AssignedUserID,
 			AssignedUsername: c.AssignedUsername,
 		})
@@ -185,7 +187,9 @@ func ListClientPageForUser(db *sql.DB, actor *model.User, keyword string, thresh
 	views := make([]ClientView, 0, len(rows))
 	for _, client := range rows {
 		views = append(views, ClientView{
-			Client: client.Client, Status: client.StatusText(now, threshold),
+			Client:         client.Client,
+			Status:         client.StatusText(now, threshold),
+			PurchaseMode:   repository.ParseClientPurchaseMode(client.Capabilities),
 			AssignedUserID: client.AssignedUserID, AssignedUsername: client.AssignedUsername,
 		})
 	}
@@ -252,6 +256,6 @@ func DeleteClients(db *sql.DB, clientIDs []string) (int64, error) {
 // ClaimNextTask 为客户端领取一个任务，没有可领的返回 (nil, nil)。
 //
 // 调用方拿到 nil 要返回 204 No Content，**不是 200 加空对象**。
-func ClaimNextTask(db *sql.DB, clientID string, supportedTypes []string) (*model.Task, error) {
-	return repository.ClaimNextTask(db, clientID, supportedTypes)
+func ClaimNextTask(db *sql.DB, clientID string, supportedTypes []string, purchaseModes ...string) (*model.Task, error) {
+	return repository.ClaimNextTask(db, clientID, supportedTypes, purchaseModes...)
 }

admin/service/task.go

@@ -58,6 +58,16 @@ func taskTypeText(t model.TaskType) string {
 	return string(t)
 }
 
+func taskExecutionModeText(taskType model.TaskType, mode model.TaskExecutionMode) string {
+	if taskType != model.TaskPurchase {
+		return "采集"
+	}
+	if mode == model.TaskExecutionLive {
+		return "真实下单（不支付）"
+	}
+	return "采购演练"
+}
+
 // ---------- 界面文字：状态 ----------
 
 // taskStatusOrder 定下状态在筛选框和底部状态条里的显示顺序，
@@ -222,13 +232,14 @@ func priceLimitText(cent int64) string {
 
 // TaskView 是列表页一行要显示的全部内容，全部已经是字符串。
 type TaskView struct {
-	TaskID     string
-	TypeText   string
-	Target     string
-	StatusText string
-	IsWarn     bool // 失败 / 需人工，标黄提醒
-	ClientText string
-	UpdatedAt  string
+	TaskID            string
+	TypeText          string
+	ExecutionModeText string
+	Target            string
+	StatusText        string
+	IsWarn            bool // 失败 / 需人工，标黄提醒
+	ClientText        string
+	UpdatedAt         string
 }
 
 // TaskListResult 是列表页要的全部数据。
@@ -274,13 +285,14 @@ func ListTasksView(db *sql.DB, filter repository.TaskFilter, requestedPage int)
 	}
 	for _, r := range rows {
 		result.Rows = append(result.Rows, TaskView{
-			TaskID:     r.TaskID,
-			TypeText:   taskTypeText(r.TaskType),
-			Target:     buildTarget(r),
-			StatusText: taskStatusText(r.Status),
-			IsWarn:     isTaskWarn(r.Status),
-			ClientText: clientText(r.AssignedClient),
-			UpdatedAt:  formatLocalTime(r.UpdatedAt),
+			TaskID:            r.TaskID,
+			TypeText:          taskTypeText(r.TaskType),
+			ExecutionModeText: taskExecutionModeText(r.TaskType, r.ExecutionMode),
+			Target:            buildTarget(r),
+			StatusText:        taskStatusText(r.Status),
+			IsWarn:            isTaskWarn(r.Status),
+			ClientText:        clientText(r.AssignedClient),
+			UpdatedAt:         formatLocalTime(r.UpdatedAt),
 		})
 	}
 	return result, nil
@@ -316,12 +328,13 @@ const resultDataLimit = 4000
 //
 // `[必须]` 只读——本工单不做改派、重试、取消，弹窗里不应该有对应的表单。
 type TaskDetailView struct {
-	TaskID     string
-	TypeText   string
-	StatusText string
-	ClientText string
-	ClaimedAt  string
-	FinishedAt string
+	TaskID            string
+	TypeText          string
+	ExecutionModeText string
+	StatusText        string
+	ClientText        string
+	ClaimedAt         string
+	FinishedAt        string
 
 	PddGoodsURL string
 
@@ -350,14 +363,15 @@ func GetTaskDetail(db *sql.DB, taskID string) (*TaskDetailView, error) {
 	}
 
 	v := &TaskDetailView{
-		TaskID:      t.TaskID,
-		TypeText:    taskTypeText(t.TaskType),
-		StatusText:  taskStatusText(t.Status),
-		ClientText:  clientText(t.AssignedClient),
-		ClaimedAt:   formatLocalTime(t.ClaimedAt),
-		FinishedAt:  formatLocalTime(t.FinishedAt),
-		PddGoodsURL: t.PddGoodsURL,
-		IsPurchase:  t.TaskType == model.TaskPurchase,
+		TaskID:            t.TaskID,
+		TypeText:          taskTypeText(t.TaskType),
+		ExecutionModeText: taskExecutionModeText(t.TaskType, t.ExecutionMode),
+		StatusText:        taskStatusText(t.Status),
+		ClientText:        clientText(t.AssignedClient),
+		ClaimedAt:         formatLocalTime(t.ClaimedAt),
+		FinishedAt:        formatLocalTime(t.FinishedAt),
+		PddGoodsURL:       t.PddGoodsURL,
+		IsPurchase:        t.TaskType == model.TaskPurchase,
 	}
 	if v.IsPurchase {
 		v.SpecText = specText(t.PddOptions)

admin/static/css/app.css

@@ -274,6 +274,27 @@ tr.empty small { color: #aaa; }
   border-radius: 6px;
 }
 .purchase-confirm-row label { display: grid; gap: 6px; }
+.execution-mode-fieldset {
+  display: grid;
+  gap: 10px;
+  margin: 0;
+  padding: 12px;
+  border: 1px solid #d0d5dd;
+  border-radius: 6px;
+}
+.choice-row { display: flex; align-items: flex-start; gap: 8px; }
+.choice-row span { display: grid; gap: 2px; }
+.choice-row small { color: #667085; font-weight: 400; }
+.live-confirm-panel {
+  display: grid;
+  gap: 10px;
+  padding: 12px;
+  border: 2px solid #b42318;
+  border-radius: 6px;
+  background: #fff5f3;
+}
+.live-confirm-panel[hidden] { display: none; }
+.live-confirm-panel p { margin: 0; }
 @media (max-width: 760px) {
   .purchase-confirm-row { grid-template-columns: 1fr; }
 }

admin/static/js/app.js

@@ -140,6 +140,33 @@
     var openButton = document.querySelector("[data-purchase-open]");
     var form = document.querySelector("[data-purchase-form]");
     if (!openButton || !form) return;
+    var modeInputs = form.querySelectorAll("[data-execution-mode]");
+    var livePanel = form.querySelector("[data-live-confirm-panel]");
+    var liveAcknowledged = form.querySelector("[data-live-acknowledged]");
+    var liveConfirmation = form.querySelector("[data-live-confirmation]");
+    var clientSelect = form.querySelector("select[name=client_id]");
+    function updateExecutionMode() {
+      var selected = form.querySelector("[data-execution-mode]:checked");
+      var isLive = selected && selected.value === "live";
+      if (livePanel) livePanel.hidden = !isLive;
+      if (liveAcknowledged) liveAcknowledged.required = isLive;
+      if (liveConfirmation) liveConfirmation.required = isLive;
+      if (clientSelect) {
+        clientSelect.querySelectorAll("option[data-purchase-mode]").forEach(function (option) {
+          option.disabled = isLive && option.getAttribute("data-purchase-mode") !== "live";
+        });
+        if (clientSelect.selectedOptions.length && clientSelect.selectedOptions[0].disabled) {
+          clientSelect.value = "";
+        }
+      }
+      form.setAttribute("data-confirm-submit", isLive
+        ? "确认创建真实的未付款订单？系统不会自动支付。"
+        : "确认创建采购演练任务？任务创建后将等待所选客户端领取。");
+    }
+    modeInputs.forEach(function (input) {
+      input.addEventListener("change", updateExecutionMode);
+    });
+    updateExecutionMode();
     openButton.addEventListener("click", function () {
       var selected = {};
       document.querySelectorAll("tbody input[name=ids]:checked").forEach(function (box) {
@@ -156,6 +183,7 @@
       });
       var empty = form.querySelector("[data-purchase-empty]");
       if (empty) empty.hidden = shown > 0;
+      updateExecutionMode();
     });
   }
 

admin/templates/syb/list.html

@@ -154,10 +154,32 @@
           <label for="purchase-client">执行客户端</label>
           <select id="purchase-client" name="client_id" required autofocus>
             <option value="">请选择当前账号可见的客户端</option>
-            {{range .AssignableClients}}<option value="{{.ClientID}}">{{.Name}}（{{.ClientID}}，{{.Status}}）</option>{{end}}
+            {{range .AssignableClients}}<option value="{{.ClientID}}" data-purchase-mode="{{.PurchaseMode}}">{{.Name}}（{{.ClientID}}，{{.Status}}，{{if eq .PurchaseMode "live"}}支持真实下单{{else}}仅演练{{end}}）</option>{{end}}
           </select>
           {{if not .AssignableClients}}<small class="missing">当前账号没有可用客户端，请先让管理员完成客户端绑定。</small>{{end}}
         </div>
+        <fieldset class="execution-mode-fieldset">
+          <legend>执行模式</legend>
+          <label class="choice-row">
+            <input type="radio" name="execution_mode" value="dry_run" checked data-execution-mode>
+            <span><strong>采购演练</strong><small>只验证采购流程，不在拼多多创建订单。</small></span>
+          </label>
+          <label class="choice-row">
+            <input type="radio" name="execution_mode" value="live" data-execution-mode>
+            <span><strong>真实下单（不支付）</strong><small>会在拼多多创建真实的未付款订单。</small></span>
+          </label>
+        </fieldset>
+        <div class="live-confirm-panel" data-live-confirm-panel hidden>
+          <strong>真实下单安全确认</strong>
+          <p>这会产生真实未付款订单。必须选择声明 live 能力的客户端；系统不会自动支付。</p>
+          <label class="choice-row">
+            <input type="checkbox" name="live_acknowledged" value="1" data-live-acknowledged>
+            <span>我确认本次操作会创建真实未付款订单</span>
+          </label>
+          <label for="live-confirmation">输入“创建未付款订单”继续</label>
+          <input id="live-confirmation" name="live_confirmation" type="text"
+                 autocomplete="off" data-live-confirmation>
+        </div>
         <p class="hint">价格上限单位是人民币元，默认取已映射 PDD 规格的采集价；不会使用顺运宝的台币售价。</p>
         {{range .Rows}}
         <div class="purchase-confirm-row" data-purchase-row="{{.SybID}}" hidden>

admin/templates/task/detail_modal.html

@@ -14,6 +14,7 @@
 <div class="modal-body">
   <dl class="detail">
     <dt>类型</dt><dd>{{.TypeText}}</dd>
+    <dt>执行模式</dt><dd>{{.ExecutionModeText}}</dd>
     <dt>状态</dt><dd>{{.StatusText}}</dd>
     <dt>分配客户端</dt><dd>{{.ClientText}}</dd>
     <dt>领取时间</dt><dd>{{.ClaimedAt}}</dd>

admin/templates/task/list.html

@@ -53,6 +53,7 @@
       <th class="col-check"><input type="checkbox" data-check-all></th>
       <th>任务编号</th>
       <th>类型</th>
+      <th>执行模式</th>
       <th>目标</th>
       <th>状态</th>
       <th>客户端</th>
@@ -69,6 +70,7 @@
       <td>{{.TaskID}}</td>
       {{/* 类型是中文文字，不能只靠颜色区分 */}}
       <td>{{.TypeText}}</td>
+      <td>{{.ExecutionModeText}}</td>
       <td class="truncate" title="{{.Target}}">{{.Target}}</td>
       <td>{{.StatusText}}</td>
       <td>{{.ClientText}}</td>
@@ -77,7 +79,7 @@
     {{else}}
     {{/* 空状态要分情况：从没建过任务 和 筛选没结果，下一步动作完全不同 */}}
     <tr class="empty">
-      <td colspan="7">
+      <td colspan="8">
         {{if .IsFiltered}}
           当前筛选条件下没有任务。<br>
           <small>换个类型、状态或关键词再试。<a href="/tasks">查看全部</a></small>

docs/admin/01-requirements.md

@@ -344,6 +344,13 @@ PDD 商品之所以单独一个模块，是因为它在数据上就是**独立
 7. 所选客户端存在且在当前账号可见范围内；
 8. 同一顺运宝明细没有 `pending` / `assigned` / `claimed` 的采购任务。
 
+采购任务创建时必须选择不可变的执行模式：
+
+- `dry_run`（采购演练）是默认值，历史任务也按此处理；
+- `live` 会创建真实未付款订单，管理员和其他正常状态用户均可创建，但必须勾选风险确认并输入“创建未付款订单”；
+- `live` 必须显式指定当前账号可见、且最后登记能力为 `purchase_mode=live` 的 Client；
+- 创建时记录确认用户和确认时间。取消、重派和结果回传均不得修改执行模式。
+
 第 5 条是硬要求：Client 契约规定采购任务必须带明确的价格保护
 （见 [Client 契约](../client/04-admin-api-contract.md) §4），没有它 Client 会拒绝执行。
 

docs/admin/03-data-model.md

@@ -134,6 +134,10 @@ MySQL 迁移 v3（工单 #88）是追加式迁移：新增 `spec_mappings`，为
 再转换能找到顺运宝商品与规格的映射。复跑、字段已建但约束未建等中断状态必须自动收敛；
 启动自检除表名外还校验 v3 主键、长度、二进制排序规则和 `source` 取值约束。
 
+MySQL 迁移 v5（工单 #98）为 `tasks` 追加 `execution_mode`、`live_confirmed_by`
+和 `live_confirmed_at`，并增加模式/审计 CHECK 与领取索引。旧任务通过数据库默认值
+统一成为 `dry_run`；每条 DDL 可重放，列、约束和索引全部通过自检后才记录 v5。
+
 ## 3. 蝦皮数据
 
 蝦皮报表**一个文件里混了两层数据**，所以拆成两张表。
@@ -677,6 +681,17 @@ CREATE INDEX idx_tasks_list   ON tasks(updated_at DESC, task_id DESC);
 CREATE INDEX idx_tasks_order  ON tasks(order_no);
 ```
 
+生产 MySQL v5 在 `tasks` 追加以下安全字段（历史 SQLite 结构不改）：
+
+| 字段 | 含义 |
+|---|---|
+| `execution_mode` | `dry_run` / `live`，非空且默认 `dry_run`；创建后不可修改 |
+| `live_confirmed_by` | 创建真实任务的正常状态 Admin 用户；演练任务必须为空 |
+| `live_confirmed_at` | 真实任务阻断确认时间；演练任务必须为空 |
+
+`chk_tasks_execution_mode` 和 `chk_tasks_live_confirmation` 在数据库层阻止非法模式及
+缺少审计信息的真实任务；`idx_tasks_claim_mode` 支持按客户端能力领取。
+
 `[必须]` 两条硬约束，来自 [Client 契约](../client/04-admin-api-contract.md) §4：
 
 1. **`pdd_goods_url` 不能为空**，否则 Client 无法执行（它那边是 `NOT NULL`）。

docs/admin/04-client-api.md

@@ -92,6 +92,7 @@ UPDATE tasks
   "task": {
     "id": "PDD-20260806-0001",
     "type": "purchase",
+    "execution_mode": "dry_run",
     "version": 1,
     "priority": 10,
     "payload": {
@@ -109,6 +110,10 @@ UPDATE tasks
 
 `[必须]` **响应里不含租约**，也不含 Admin 侧状态。Client 不关心这些。
 
+`execution_mode` 只允许 `dry_run` / `live`，历史任务默认 `dry_run`。领取查询必须按
+Client 上报的 `capabilities.purchase_mode` 过滤：`dry_run` Client 只能看到演练任务，
+`live` Client 可以看到两种；过滤只决定能否领取，绝不改变任务自身模式。
+
 `[必须]` `payload.goods_url` 必须有值；采购任务的 `quantity` 和 `max_price_cent` 必须有值。
 这些在建任务时就该校验住（见 [01 需求](01-requirements.md) §5），
 不要等到这里才发现发不出去。

docs/admin/05-ui-specification.md

@@ -569,12 +569,12 @@ placeholder 写「任务编号 / 订单号 / 商品 ID」，**不要写全「PDD
 
 ### 7.2 表格列
 
-☐ / 任务编号 / 类型 / **目标** / 状态 / 客户端 / 更新时间
+☐ / 任务编号 / 类型 / **执行模式** / **目标** / 状态 / 客户端 / 更新时间
 
 ```text
-☐ │ 任务编号        │ 类型 │ 目标                            │ 状态   │ 客户端    │ 更新时间
-☐ │ PDD-20260807-01 │ 采集 │ PDD 737116531267                │ 已领取 │ 办公室-01 │ 15:20
-☐ │ PDD-20260807-02 │ 采购 │ SO-001 · 黑色/M · 2件 · ≤¥42.00 │ 待领取 │ —         │ 15:22
+☐ │ 任务编号        │ 类型 │ 执行模式          │ 目标                            │ 状态   │ 客户端    │ 更新时间
+☐ │ PDD-20260807-01 │ 采集 │ 采集              │ PDD 737116531267                │ 已领取 │ 办公室-01 │ 15:20
+☐ │ PDD-20260807-02 │ 采购 │ 真实下单（不支付）│ SO-001 · 黑色/M · 2件 · ≤¥42.00 │ 待领取 │ 办公室-02 │ 15:22
 ```
 
 - `[必须]` **目标列**：采集显示 `PDD <pdd_goods_id>`（能 join 到未删除商品
@@ -596,6 +596,7 @@ placeholder 写「任务编号 / 订单号 / 商品 ID」，**不要写全「PDD
 │ 任务 PDD-20260807-01                         │
 ├──────────────────────────────────────────────┤
 │ 类型      采集                                │
+│ 执行模式  采集                                │
 │ 状态      已领取                              │
 │ 分配客户端 办公室-01                          │
 │ 领取时间  2026-08-07 15:20:31                 │

docs/client/04-admin-api-contract.md

@@ -193,7 +193,17 @@ POST /api/v1/client/tasks/claim
 
 ```json
 {
-  "task": {}
+  "task": {
+    "id": "COLLECT-20260810-0001",
+    "type": "collect",
+    "execution_mode": "dry_run",
+    "version": 1,
+    "priority": 10,
+    "payload": {
+      "goods_id": "737116531267",
+      "goods_url": "https://mobile.yangkeduo.com/goods.html?goods_id=737116531267"
+    }
+  }
 }
 ```
 
@@ -222,6 +232,8 @@ Client 的 `HttpAdminGateway.claim_next` 已实现本接口，并原样序列化
 
 - `[必须]` 领取必须在 Admin 内部原子完成，一次调用最多返回一个任务。
 - `[必须]` Admin 不得向只声明 `dry_run` 的 Client 分配要求真实下单的任务。
+- `[必须]` `execution_mode` 只允许 `dry_run`、`live`。历史任务和缺省值都是 `dry_run`；Client 不得自行把模式从演练提升为真实。
+- `[必须]` 声明 `dry_run` 的 Client 只能领取 `dry_run`；声明 `live` 的 Client 可以领取两种模式。能力只缩小可领取范围，不修改任务模式。
 - `[必须]` 响应**不包含**租约。Client 拿到任务就开始做，做完再来领下一个。
 
 ### 5.1 Admin 侧的分配语义
@@ -233,6 +245,10 @@ Client 的 `HttpAdminGateway.claim_next` 已实现本接口，并原样序列化
 | **指定分配** | 某个 Client 编号 | `assigned` | 只有那个 Client |
 | **无主** | 空 | `pending` | **谁先抢到算谁的**，领取时才记下领取者 |
 
+领取还必须同时满足执行能力：`dry_run` Client 永远看不到 `live` 任务；
+`live` Client 可以领取 `dry_run` 和 `live`。Admin 当前只允许真实采购任务显式指定
+一个已经登记并声明 `purchase_mode: "live"` 的 Client，因此真实任务不会进入无主任务池。
+
 `[必须]` **指定给本机的优先于无主的。** 显式分配是人为决定，应当先兑现；
 无主任务谁抢都一样，可以等。