Recreated solution with web app template. Improved theme. Switched to ShadcnBlazor library

Moonlight.Api/Database/DataContext.cs

@@ -0,0 +1,32 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+using Moonlight.Api.Configuration;
+using Moonlight.Api.Database.Entities;
+
+namespace Moonlight.Api.Database;
+
+public class DataContext : DbContext
+{
+    public DbSet<User> Users { get; set; }
+
+    private readonly IOptions<DatabaseOptions> Options;
+
+    public DataContext(IOptions<DatabaseOptions> options)
+    {
+        Options = options;
+    }
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        if (optionsBuilder.IsConfigured)
+            return;
+
+        optionsBuilder.UseNpgsql(
+            $"Host={Options.Value.Host};" +
+            $"Port={Options.Value.Port};" +
+            $"Username={Options.Value.Username};" +
+            $"Password={Options.Value.Password};" +
+            $"Database={Options.Value.Database}"
+        );
+    }
+}

Moonlight.Api/Database/DatabaseRepository.cs

@@ -0,0 +1,36 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace Moonlight.Api.Database;
+
+public class DatabaseRepository<T> where T : class
+{
+    private readonly DataContext DataContext;
+    private readonly DbSet<T> Set;
+
+    public DatabaseRepository(DataContext dataContext)
+    {
+        DataContext = dataContext;
+        Set = DataContext.Set<T>();
+    }
+
+    public IQueryable<T> Query() => Set;
+
+    public async Task<T> AddAsync(T entity)
+    {
+        var final = Set.Add(entity);
+        await DataContext.SaveChangesAsync();
+        return final.Entity;
+    }
+
+    public async Task UpdateAsync(T entity)
+    {
+        Set.Update(entity);
+        await DataContext.SaveChangesAsync();
+    }
+
+    public async Task RemoveAsync(T entity)
+    {
+        Set.Remove(entity);
+        await DataContext.SaveChangesAsync();
+    }
+}

Moonlight.Api/Database/Entities/User.cs

@@ -0,0 +1,11 @@
+namespace Moonlight.Api.Database.Entities;
+
+public class User
+{
+    public int Id { get; set; }
+
+    public string Username { get; set; }
+    public string Email { get; set; }
+
+    public DateTimeOffset InvalidateTimestamp { get; set; }
+}

Moonlight.Api/Database/Migrations/20251216083232_AddedUsers.Designer.cs

@@ -0,0 +1,55 @@
+// <auto-generated />
+
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Moonlight.Api.Database;
+
+#nullable disable
+
+namespace Moonlight.Api.Database.Migrations
+{
+    [DbContext(typeof(DataContext))]
+    [Migration("20251216083232_AddedUsers")]
+    partial class AddedUsers
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.1")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Moonlight.Api.Database.Entities.User", b =>
+            {
+                b.Property<int>("Id")
+                    .ValueGeneratedOnAdd()
+                    .HasColumnType("integer");
+
+                NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                b.Property<string>("Email")
+                    .IsRequired()
+                    .HasColumnType("text");
+
+                b.Property<DateTimeOffset>("InvalidateTimestamp")
+                    .HasColumnType("timestamp with time zone");
+
+                b.Property<string>("Username")
+                    .IsRequired()
+                    .HasColumnType("text");
+
+                b.HasKey("Id");
+
+                b.ToTable("Users");
+            });
+#pragma warning restore 612, 618
+        }
+    }
+}

Moonlight.Api/Database/Migrations/20251216083232_AddedUsers.cs

@@ -0,0 +1,37 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Moonlight.Api.Database.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddedUsers : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Users",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy",
+                            NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Username = table.Column<string>(type: "text", nullable: false),
+                    Email = table.Column<string>(type: "text", nullable: false),
+                    InvalidateTimestamp =
+                        table.Column<DateTimeOffset>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table => { table.PrimaryKey("PK_Users", x => x.Id); });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Users");
+        }
+    }
+}

Moonlight.Api/Database/Migrations/DataContextModelSnapshot.cs

@@ -0,0 +1,52 @@
+// <auto-generated />
+
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Moonlight.Api.Database;
+
+#nullable disable
+
+namespace Moonlight.Api.Database.Migrations
+{
+    [DbContext(typeof(DataContext))]
+    partial class DataContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.1")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Moonlight.Api.Database.Entities.User", b =>
+            {
+                b.Property<int>("Id")
+                    .ValueGeneratedOnAdd()
+                    .HasColumnType("integer");
+
+                NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                b.Property<string>("Email")
+                    .IsRequired()
+                    .HasColumnType("text");
+
+                b.Property<DateTimeOffset>("InvalidateTimestamp")
+                    .HasColumnType("timestamp with time zone");
+
+                b.Property<string>("Username")
+                    .IsRequired()
+                    .HasColumnType("text");
+
+                b.HasKey("Id");
+
+                b.ToTable("Users");
+            });
+#pragma warning restore 612, 618
+        }
+    }
+}