新增：连接管理、数据查询等功能

internal/api/tab_api.go

@@ -0,0 +1,79 @@
+package api
+
+import (
+	"fmt"
+	"go-desk/internal/service"
+	"go-desk/internal/storage/models"
+)
+
+// TabAPI 标签页API
+type TabAPI struct {
+	tabService *service.TabService
+}
+
+// NewTabAPI 创建标签页API
+func NewTabAPI() (*TabAPI, error) {
+	tabService, err := service.NewTabService()
+	if err != nil {
+		return nil, err
+	}
+	return &TabAPI{tabService: tabService}, nil
+}
+
+// SaveSqlTabs 保存SQL标签页列表（接收 map 格式，转换为模型）
+func (api *TabAPI) SaveSqlTabs(tabs []map[string]interface{}) error {
+	sqlTabs := make([]models.SqlTab, len(tabs))
+	for idx, tabData := range tabs {
+		tab := models.SqlTab{
+			Order: idx,
+		}
+
+		// 处理 ID
+		if id, ok := tabData["id"].(float64); ok && id > 0 {
+			tab.ID = uint(id)
+		}
+
+		// 处理标题
+		if title, ok := tabData["title"].(string); ok {
+			tab.Title = title
+		} else {
+			tab.Title = fmt.Sprintf("查询 %d", idx+1)
+		}
+
+		// 处理内容
+		if content, ok := tabData["content"].(string); ok {
+			tab.Content = content
+		}
+
+		// 处理连接ID
+		if connId, ok := tabData["connectionId"].(float64); ok && connId > 0 {
+			connID := uint(connId)
+			tab.ConnectionID = &connID
+		}
+
+		sqlTabs[idx] = tab
+	}
+	return api.tabService.SaveTabs(sqlTabs)
+}
+
+// ListSqlTabs 获取SQL标签页列表（返回 map 格式）
+func (api *TabAPI) ListSqlTabs() ([]map[string]interface{}, error) {
+	tabs, err := api.tabService.ListTabs()
+	if err != nil {
+		return nil, err
+	}
+
+	result := make([]map[string]interface{}, len(tabs))
+	for i, tab := range tabs {
+		result[i] = map[string]interface{}{
+			"id":           tab.ID,
+			"title":        tab.Title,
+			"content":      tab.Content,
+			"connectionId": tab.ConnectionID,
+			"order":        tab.Order,
+			"createdAt":    tab.CreatedAt.Format("2006-01-02 15:04:05"),
+			"updatedAt":    tab.UpdatedAt.Format("2006-01-02 15:04:05"),
+		}
+	}
+	return result, nil
+}