feat: step train.

models/step_train.go

@@ -0,0 +1,38 @@
+package models
+
+import "gorm.io/gorm"
+
+type StepStrideFreq struct {
+	gorm.Model
+	TrainId      uint   `gorm:"column:train_id; index" json:"trainId"` // 外键关联训练记录[4](@ref)
+	Time         int64  `gorm:"type:bigint" json:"time"`               // 保持与前端一致的毫秒时间戳[3](@ref)
+	Value        int    `gorm:"type:int" json:"value"`
+	PredictValue int    `gorm:"type:int" json:"predictValue"`
+	Identifier   string `gorm:"uniqueIndex;type:varchar(255)" json:"identifier"`
+}
+
+// 对应Flutter的HeartRate结构
+type StepHeartRate struct {
+	gorm.Model
+	TrainId       uint   `gorm:"column:train_id; index" json:"trainId"` // 外键关联训练记录[4](@ref)
+	Time          int64  `gorm:"type:bigint" json:"time"`               // 保持与前端一致的毫秒时间戳[3](@ref)
+	Value         int    `gorm:"type:int" json:"value"`
+	HeartRateType int    `gorm:"type:int" json:"predictValue"`
+	Identifier    string `gorm:"uniqueIndex;type:varchar(255)" json:"identifier"`
+}
+
+// 对应Flutter的TrainRecord结构
+type StepTrainRecord struct {
+	gorm.Model
+	TrainId      uint             `gorm:"uniqueIndex" json:"tid"`     // 对应Dart的tid字段
+	StartTime    int64            `gorm:"type:bigint" json:"time"`    // 开始时间戳
+	EndTime      int64            `gorm:"type:bigint" json:"endTime"` // 结束时间戳[3](@ref)
+	Name         string           `gorm:"size:100" json:"name"`
+	RunType      string           `gorm:"size:100" json:"RunType"`
+	MaxHeartRate int              `gorm:"type:int" json:"maxHeartRate"`
+	Duration     int              `gorm:"type:int" json:"duration"` // 持续时间(秒)
+	DeadZone     int              `gorm:"type:int" json:"deadZone"`
+	Evaluation   string           `gorm:"size:50" json:"evaluation"`
+	HeartRates   []StepHeartRate  `gorm:"foreignKey:TrainId;references:TrainId" json:"HeartRates"`
+	StrideFreqs  []StepStrideFreq `gorm:"foreignKey:TrainId;references:TrainId" json:"strideFreqs"`
+}