fix: prevent nil pointer panic in RequireOwner middleware for super_admin

middleware/auth.go

@@ -152,6 +152,12 @@ func RequireOwner() gin.HandlerFunc {
 			return
 		}
 
+		if user.CompanyID == nil {
+			c.JSON(http.StatusForbidden, gin.H{"detail": "Akses ditolak: Akun Anda tidak terikat ke perusahaan/toko manapun."})
+			c.Abort()
+			return
+		}
+
 		c.Next()
 	}
 }