chore: build backend frontend web

backend/gestion/handlers/categories.go

@@ -109,6 +109,26 @@ func UpdateCategory(c *gin.Context) {
 	})
 }
 
+func ReorderCategories(c *gin.Context) {
+	database := c.MustGet("database").(*db.Database)
+
+	var req struct {
+		IDs []int `json:"ids" binding:"required"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil || len(req.IDs) == 0 {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Liste d'IDs requise"})
+		return
+	}
+
+	if err := database.ReorderCategories(req.IDs); err != nil {
+		log.Printf("❌ [CATEGORIES] Reorder erreur: %v", err)
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Erreur lors du réordonnancement"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"success": true})
+}
+
 func DeleteCategory(c *gin.Context) {
 	database := c.MustGet("database").(*db.Database)