refacts

src/isnd/Data/Catalog/CatalogLeaf.cs

@@ -8,7 +8,7 @@ namespace isnd.Data.Catalog
     {
 
         [JsonProperty("@type")]
-        public List<string> RefType { get; set; }
+        public string[] RefType { get; set; }
 
         [JsonProperty("commitId")]
         public string CommitId { get; set; }

src/isnd/Data/Package.cs

@@ -11,7 +11,7 @@ namespace isnd.Data
     {
         [Key][Required]
         [StringLength(1024)]
-        public string Id { get; set; }
+        public string  Id { get; set; }
 
         [Required]
         [ForeignKey("Owner")]
@@ -30,8 +30,8 @@ namespace isnd.Data
         public virtual List<PackageVersion> Versions { get; set; }
 
         /// <summary>
-        /// Latest package version put, or post, 
-        /// or { delete when no more active version }.
+        /// Latest version at put, posted, 
+        /// or even deletion when no more active version.
         /// </summary>
         /// <value></value>
         [Required][JsonIgnore]

src/isnd/Data/PackageVersion.cs

@@ -1,5 +1,6 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using isn.abst;
 using isnd.Data.Catalog;
 using Newtonsoft.Json;
 
@@ -41,8 +42,10 @@ namespace isnd.Data
         public string CommitId { get => CommitNId.ToString(); }
 
         public virtual Commit LatestCommit{ get; set; }
-        public string NugetLink => $"/package/{PackageId}/{FullString}/{PackageId}-{FullString}.nupkg";
-        public string NuspecLink => $"/package/{PackageId}/{FullString}/{PackageId}-{FullString}.nuspec";
+        public string NugetLink => $"/{Constants.PaquetFileEstension}/{PackageId}/{FullString}/{PackageId}-{FullString}."
+         + Constants.PaquetFileEstension;
+        public string NuspecLink => $"/{Constants.SpecFileEstension}/{PackageId}/{FullString}/{PackageId}-{FullString}."
+         + Constants.SpecFileEstension;
 
     }
 }