wip: 🧠 初步的框架

src/backend/NetAdmin.Domain/DbMaps/Sys/Sys_DicCatalog.cs

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+using NetAdmin.Domain.DbMaps.Dependency;
+
+namespace NetAdmin.Domain.DbMaps.Sys;
+
+/// <summary>
+///     字典目录表
+/// </summary>
+[Table(Name = Chars.FLG_TABLE_NAME_PREFIX + nameof(Sys_DicCatalog))]
+[Index($"idx_{{tablename}}_{nameof(Code)}", nameof(Code), true)]
+public record Sys_DicCatalog : VersionEntity
+{
+    /// <summary>
+    ///     子节点
+    /// </summary>
+    [JsonIgnore]
+    [Navigate(nameof(ParentId))]
+    public IEnumerable<Sys_DicCatalog> Children { get; init; }
+
+    /// <summary>
+    ///     字典编码
+    /// </summary>
+    [JsonIgnore]
+    [Column(DbType = Chars.FLG_DB_FIELD_TYPE_VARCHAR_31)]
+    public virtual string Code { get; init; }
+
+    /// <summary>
+    ///     字典内容集合
+    /// </summary>
+    [JsonIgnore]
+    [Navigate(nameof(Sys_DicContent.CatalogId))]
+    public ICollection<Sys_DicContent> Contents { get; init; }
+
+    /// <summary>
+    ///     字典名称
+    /// </summary>
+    [JsonIgnore]
+    [Column(DbType = Chars.FLG_DB_FIELD_TYPE_VARCHAR_31)]
+    public virtual string Name { get; init; }
+
+    /// <summary>
+    ///     父编号
+    /// </summary>
+    [JsonIgnore]
+    [Column]
+    public virtual long ParentId { get; init; }
+}