Started implementing oauth2 based on MoonCore helper services

Its more or less a test how well the helper services improve the implementation. I havent implemented anything fancy here atm. Just testing the oauth2 flow

Moonlight.ApiServer/Database/Migrations/20241017214600_AddedAccessAndRefreshTokenFields.cs

@@ -0,0 +1,58 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Moonlight.ApiServer.Database.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddedAccessAndRefreshTokenFields : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "AccessToken",
+                schema: "Core",
+                table: "Users",
+                type: "longtext",
+                nullable: false)
+                .Annotation("MySql:CharSet", "utf8mb4");
+
+            migrationBuilder.AddColumn<DateTime>(
+                name: "RefreshTimestamp",
+                schema: "Core",
+                table: "Users",
+                type: "datetime(6)",
+                nullable: false,
+                defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified));
+
+            migrationBuilder.AddColumn<string>(
+                name: "RefreshToken",
+                schema: "Core",
+                table: "Users",
+                type: "longtext",
+                nullable: false)
+                .Annotation("MySql:CharSet", "utf8mb4");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "AccessToken",
+                schema: "Core",
+                table: "Users");
+
+            migrationBuilder.DropColumn(
+                name: "RefreshTimestamp",
+                schema: "Core",
+                table: "Users");
+
+            migrationBuilder.DropColumn(
+                name: "RefreshToken",
+                schema: "Core",
+                table: "Users");
+        }
+    }
+}