feat: implement core backend for team owner management with SQLite, auto-add APIs, and a frontend owner list component.

backend/internal/api/auto_add.go

@@ -206,12 +206,21 @@ func getS2AAccountCount() (int, error) {
 	}
 
 	var result struct {
-		NormalAccounts int `json:"normal_accounts"`
+		Code    int    `json:"code"`
+		Message string `json:"message"`
+		Data    struct {
+			NormalAccounts int `json:"normal_accounts"`
+		} `json:"data"`
 	}
 
 	if err := decodeJSON(resp.Body, &result); err != nil {
 		return 0, err
 	}
 
-	return result.NormalAccounts, nil
+	// S2A 返回 code=0 表示成功
+	if result.Code != 0 {
+		return 0, fmt.Errorf("S2A 返回错误: %s", result.Message)
+	}
+
+	return result.Data.NormalAccounts, nil
 }

backend/internal/api/team_process.go

@@ -292,7 +292,8 @@ func processSingleTeam(idx int, req TeamProcessRequest) TeamProcessResult {
 		Errors:       make([]string, 0),
 	}
 
-	logPrefix := fmt.Sprintf("[Team %d]", idx+1)
+	// 固定宽度的 Team 编号 (支持到 Team 99)
+	logPrefix := fmt.Sprintf("[Team %2d]", idx+1)
 	logger.Info(fmt.Sprintf("%s 开始处理 | 母号: %s", logPrefix, owner.Email), owner.Email, "team")
 
 	// 标记 owner 为处理中
@@ -385,12 +386,23 @@ func processSingleTeam(idx int, req TeamProcessRequest) TeamProcessResult {
 				// 重试时使用新邮箱
 				currentEmail = mail.GenerateEmail()
 				currentPassword = register.GeneratePassword()
-				logger.Warning(fmt.Sprintf("%s [成员 %d] 重试，新邮箱: %s", logPrefix, memberIdx+1, currentEmail), currentEmail, "team")
+				logger.Warning(fmt.Sprintf("%s [成员 %d] 重试, 新邮箱: %s", logPrefix, memberIdx+1, currentEmail), currentEmail, "team")
 			}
 
 			// 发送邀请
 			if err := inviter.SendInvites([]string{currentEmail}); err != nil {
+				errStr := err.Error()
 				logger.Error(fmt.Sprintf("%s [成员 %d] 邀请失败: %v", logPrefix, memberIdx+1, err), currentEmail, "team")
+
+				// 检测 Team 已达邀请上限
+				if strings.Contains(errStr, "maximum number of seats") {
+					logger.Warning(fmt.Sprintf("%s Team 邀请已满，标记母号为已使用", logPrefix), owner.Email, "team")
+					if database.Instance != nil {
+						database.Instance.MarkOwnerAsUsed(owner.Email)
+					}
+					// 跳出重试，该成员不再处理
+					return false
+				}
 				continue
 			}
 
@@ -538,7 +550,7 @@ func processSingleTeam(idx int, req TeamProcessRequest) TeamProcessResult {
 					result.Errors = append(result.Errors, fmt.Sprintf("Owner S2A: %v", err))
 				} else {
 					result.AddedToS2A++
-					logger.Success(fmt.Sprintf("%s [母号] ✓ 入库成功", logPrefix), owner.Email, "team")
+					logger.Success(fmt.Sprintf("%s [母号  ] ✓ 入库成功", logPrefix), owner.Email, "team")
 				}
 			}
 		}

backend/internal/database/sqlite.go

@@ -189,7 +189,8 @@ func (d *DB) GetTeamOwners(status string, limit, offset int) ([]TeamOwner, int,
 		return nil, 0, err
 	}
 
-	query += " ORDER BY created_at DESC LIMIT ? OFFSET ?"
+	// 排序：已使用(used, pooled)排前面，其次按创建时间降序
+	query += " ORDER BY CASE WHEN status IN ('used', 'pooled') THEN 0 ELSE 1 END, created_at DESC LIMIT ? OFFSET ?"
 	args = append(args, limit, offset)
 
 	rows, err := d.db.Query(query, args...)
@@ -277,6 +278,15 @@ func (d *DB) ClearTeamOwners() error {
 	return err
 }
 
+// ClearUsedOwners 清理已使用的母号（status = 'used' 或 'pooled'）
+func (d *DB) ClearUsedOwners() (int64, error) {
+	result, err := d.db.Exec("DELETE FROM team_owners WHERE status IN ('used', 'pooled')")
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}
+
 // GetOwnersWithoutAccountID 获取缺少 account_id 的 owners
 func (d *DB) GetOwnersWithoutAccountID() ([]TeamOwner, error) {
 	rows, err := d.db.Query(`

backend/internal/logger/logger.go

@@ -119,19 +119,27 @@ func log(level, message, email, module string) {
 	color := ""
 	switch level {
 	case "info":
-		prefix = "INFO"
+		prefix = "INFO   "
 		color = colorCyan
 	case "success":
 		prefix = "SUCCESS"
 		color = colorGreen
 	case "error":
-		prefix = "ERROR"
+		prefix = "ERROR  "
 		color = colorRed
 	case "warning":
-		prefix = "WARN"
+		prefix = "WARN   "
 		color = colorYellow
 	}
 
+	// 模块名固定宽度（8字符）
+	moduleStr := module
+	if len(moduleStr) < 8 {
+		moduleStr = moduleStr + strings.Repeat(" ", 8-len(moduleStr))
+	} else if len(moduleStr) > 8 {
+		moduleStr = moduleStr[:8]
+	}
+
 	// 如果是 Team 相关日志，消息使用 Team 颜色
 	msgColor := colorReset
 	if teamColor != "" {
@@ -139,15 +147,20 @@ func log(level, message, email, module string) {
 	}
 
 	if email != "" {
-		fmt.Printf("%s%s%s %s[%s]%s [%s] %s - %s%s%s\n",
+		// 截断长邮箱，保持对齐
+		emailDisplay := email
+		if len(emailDisplay) > 35 {
+			emailDisplay = emailDisplay[:32] + "..."
+		}
+		fmt.Printf("%s%s%s %s[%s]%s [%s] %s%s%s\n",
 			colorGray, timestamp, colorReset,
 			color, prefix, colorReset,
-			module, email, msgColor, message, colorReset)
+			moduleStr, msgColor, message, colorReset)
 	} else {
 		fmt.Printf("%s%s%s %s[%s]%s [%s] %s%s%s\n",
 			colorGray, timestamp, colorReset,
 			color, prefix, colorReset,
-			module, msgColor, message, colorReset)
+			moduleStr, msgColor, message, colorReset)
 	}
 }