Add supply contract entity

Hcs.WebApp/Data/Hcs/Migrations/20251122100029_AddSupplyContractEntity.cs

@@ -0,0 +1,46 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+namespace Hcs.WebApp.Data.Hcs.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddSupplyContractEntity : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "SupplyContracts",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    HcsId = table.Column<Guid>(type: "uniqueidentifier", nullable: true),
+                    ThirdPartyId = table.Column<string>(type: "nvarchar(max)", nullable: true),
+                    SyncedAt = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    LastSyncOperationId = table.Column<int>(type: "int", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_SupplyContracts", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_SupplyContracts_Operations_LastSyncOperationId",
+                        column: x => x.LastSyncOperationId,
+                        principalTable: "Operations",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SupplyContracts_LastSyncOperationId",
+                table: "SupplyContracts",
+                column: "LastSyncOperationId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "SupplyContracts");
+        }
+    }
+}