Add cache for user agent/name

src/Managing.Infrastructure.Database/Migrations/20251009200022_AddUserIndexes.cs

@@ -0,0 +1,27 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Managing.Infrastructure.Databases.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddUserIndexes : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateIndex(
+                name: "IX_Users_AgentName",
+                table: "Users",
+                column: "AgentName");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "IX_Users_AgentName",
+                table: "Users");
+        }
+    }
+}