many fixes and improvements - rework for modules/ and common/

feat(emailer): add Postmark and Resend providers

backend/Modules/Identity/Handlers/SetPassword.cs

@@ -0,0 +1,50 @@
+using Hutopy.Infrastructure.Security;
+using Hutopy.Modules.Identity.Data;
+
+namespace Hutopy.Modules.Identity.Handlers;
+
+[PublicAPI]
+public record SetPasswordRequest(
+    string NewPassword);
+
+[PublicAPI]
+public class SetPasswordHandler(
+    UserManager userManager)
+    : Endpoint<SetPasswordRequest>
+{
+    public override void Configure()
+    {
+        Post("/api/users/set-password");
+        Options(o => o.WithTags("Users"));
+    }
+
+    public override async Task HandleAsync(
+        SetPasswordRequest request,
+        CancellationToken ct)
+    {
+        // Get current user id from claims
+        var userId = User.GetUserId().ToString();
+        
+        // Get user from database
+        var user = await userManager.FindByIdAsync(userId);
+        if (user is null)
+        {
+            await SendForbiddenAsync(ct);
+            return;
+        }
+
+        var resetToken = await userManager.GeneratePasswordResetTokenAsync(user);
+        var result = await userManager.ResetPasswordAsync(user, resetToken, request.NewPassword);
+        
+        if (!result.Succeeded)
+        {
+            await SendStringAsync(
+                result.Errors.First().Description,
+                400,
+                cancellation: ct);
+            return;
+        }
+        
+        await SendOkAsync(ct);
+    }
+}