feat: add DI form factory

Examples/EFCoreBot/Database/BotDbContext.cs

@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace EFCoreBot.Database;
+
+public class BotDbContext : DbContext
+{
+    public BotDbContext(DbContextOptions options) : base(options)
+    {
+    }
+
+    public DbSet<User> Users { get; set; }
+}

Examples/EFCoreBot/Database/User.cs

@@ -0,0 +1,7 @@
+namespace EFCoreBot.Database;
+
+public class User
+{
+    public long Id { get; set; }
+    public string LastMessage { get; set; }
+}