-feat 修复部分bug

internal/handler/transaction_handler.go

@@ -5,9 +5,9 @@ import (
 	"strconv"
 	"time"
 
-	"accounting-app/pkg/api"
 	"accounting-app/internal/models"
 	"accounting-app/internal/service"
+	"accounting-app/pkg/api"
 
 	"github.com/gin-gonic/gin"
 )
@@ -155,6 +155,17 @@ func (h *TransactionHandler) GetTransactions(c *gin.Context) {
 		input.AccountID = &accID
 	}
 
+	// Parse ledger filter
+	if ledgerIDStr := c.Query("ledger_id"); ledgerIDStr != "" {
+		ledgerID, err := strconv.ParseUint(ledgerIDStr, 10, 32)
+		if err != nil {
+			api.BadRequest(c, "Invalid ledger_id")
+			return
+		}
+		lid := uint(ledgerID)
+		input.LedgerID = &lid
+	}
+
 	if typeStr := c.Query("type"); typeStr != "" {
 		txnType := models.TransactionType(typeStr)
 		input.Type = &txnType