feat(api): в сущность FIeld добавлено поле IsMultipleValue для реализации записи повторяющихся полей, как сервер приложений в компонентном составе виртуальных серверов

PARR.DAL/Migrations/20250922040409_tblUnitFieldsAddIsMultipleValueClmn.cs

@@ -0,0 +1,52 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PARR.DAL.Migrations
+{
+    /// <inheritdoc />
+    public partial class tblUnitFieldsAddIsMultipleValueClmn : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_UnitInValues",
+                schema: "unit",
+                table: "UnitInValues");
+
+            migrationBuilder.AddColumn<bool>(
+                name: "IsMultipleValue",
+                schema: "unit",
+                table: "Fields",
+                type: "boolean",
+                nullable: true);
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_UnitInValues",
+                schema: "unit",
+                table: "UnitInValues",
+                columns: new[] { "UnitId", "FieldId", "ValueId" });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_UnitInValues",
+                schema: "unit",
+                table: "UnitInValues");
+
+            migrationBuilder.DropColumn(
+                name: "IsMultipleValue",
+                schema: "unit",
+                table: "Fields");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_UnitInValues",
+                schema: "unit",
+                table: "UnitInValues",
+                columns: new[] { "UnitId", "FieldId" });
+        }
+    }
+}