feat(legacy): implement health check function

api/legacy/handlers.go

@@ -0,0 +1,25 @@
+package legacy
+
+import (
+	"net/http"
+	"time"
+
+	"hands/config"
+	"hands/define"
+
+	"github.com/gin-gonic/gin"
+)
+
+// handleHealth 健康检查处理函数
+func (s *LegacyServer) handleHealth(c *gin.Context) {
+	c.JSON(http.StatusOK, define.ApiResponse{
+		Status:  "success",
+		Message: "CAN Control Service is running",
+		Data: map[string]any{
+			"timestamp":           time.Now(),
+			"availableInterfaces": config.Config.AvailableInterfaces,
+			"defaultInterface":    config.Config.DefaultInterface,
+			"serviceVersion":      "1.0.0-hand-type-support",
+		},
+	})
+}