accounts db & http sdk db impl

BLHX.Server.Common/Database/Account.cs

@@ -0,0 +1,34 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace BLHX.Server.Common.Database
+{
+    public sealed class AccountContext : DbContext, IBLHXDBContext<AccountContext>
+    {
+        public static string DbPath => "Databases/accounts.db";
+        public DbSet<Account> Accounts { get; set; }
+
+        public AccountContext()
+        {
+            Database.EnsureCreated();
+        }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder options)
+            => options.UseSqlite($"Data Source={((IBLHXDBContext)this).GetFullDbPath()}");
+    }
+
+    [PrimaryKey(nameof(Uid))]
+    public class Account
+    {
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public uint Uid { get; set; }
+        public string DeviceId { get; set; }
+        public string Token { get; set; }
+
+        public Account(string deviceId, string token)
+        {
+            DeviceId = deviceId;
+            Token = token;
+        }
+    }
+}