first commit of restructured project

trahn-trade-backend/internal/models/trade.go

@@ -0,0 +1,29 @@
+package models
+
+import "time"
+
+type Trade struct {
+	ID              int64     `json:"id"`
+	Timestamp       time.Time `json:"timestamp"`
+	TradingDay      string    `json:"tradingDay"`
+	Side            string    `json:"side"` // "buy" or "sell"
+	Price           float64   `json:"price"`
+	Quantity        float64   `json:"quantity"`
+	USDValue        float64   `json:"usdValue"`
+	GridLevel       *int      `json:"gridLevel,omitempty"`
+	TxHash          *string   `json:"txHash,omitempty"`
+	IsPaperTrade    bool      `json:"isPaperTrade"`
+	SlippagePercent *float64  `json:"slippagePercent,omitempty"`
+	GasCostETH      *float64  `json:"gasCostEth,omitempty"`
+	CreatedAt       time.Time `json:"createdAt"`
+}
+
+type TradeStats struct {
+	TotalTrades int64      `json:"totalTrades"`
+	BuyCount    int64      `json:"buyCount"`
+	SellCount   int64      `json:"sellCount"`
+	TotalVolume *float64   `json:"totalVolume"`
+	AvgPrice    *float64   `json:"avgPrice"`
+	FirstTrade  *time.Time `json:"firstTrade"`
+	LastTrade   *time.Time `json:"lastTrade"`
+}