chore: refacto

backend/gestion/handlers/referral.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"gestion/db"
+	"gestion/utils"
 	"log"
 	"net/http"
 
@@ -26,7 +27,7 @@ func GetMyReferralBalance(c *gin.Context) {
 
 	balance, err := database.GetClientReferralBalance(username.(string))
 	if err != nil {
-		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		c.JSON(http.StatusNotFound, gin.H{"error": "Solde de parrainage introuvable"})
 		return
 	}
 
@@ -47,8 +48,7 @@ func CreditClientReferralAdmin(c *gin.Context) {
 	}
 
 	if err := database.CreditClientReferral(targetUsername, req.Amount); err != nil {
-		log.Printf("❌ [REFERRAL] Crédit échoué pour %s: %v", targetUsername, err)
-		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		utils.ServerErr(c, "Impossible de créditer le solde", err)
 		return
 	}
 
@@ -68,7 +68,7 @@ func GetClientReferralAdmin(c *gin.Context) {
 
 	balance, err := database.GetClientReferralBalance(targetUsername)
 	if err != nil {
-		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		c.JSON(http.StatusNotFound, gin.H{"error": "Client introuvable"})
 		return
 	}