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

feat(emailer): add Postmark and Resend providers

backend/Modules/Creators/Features/RevokeStripe.cs

@@ -0,0 +1,48 @@
+using Hutopy.Infrastructure.Security;
+using Hutopy.Modules.Creators.Data;
+
+namespace Hutopy.Modules.Creators.Features;
+
+[PublicAPI]
+public class RemoveStripeHandler(
+    CreatorsDbContext dbContext)
+    : EndpointWithoutRequest
+{
+    public override void Configure()
+    {
+        Delete("/api/stripe");
+        Options(o => o.WithTags("Creators"));
+    }
+
+    public override async Task HandleAsync(CancellationToken ct)
+    {
+        // 1. Get the creator's ID from the authenticated user
+        Guid creatorId = HttpContext.User.GetUserId();
+
+        // 2. Retrieve the creator from the database
+        Creator? creator = await dbContext
+            .Creators
+            .SingleOrDefaultAsync(
+                c => c.Id == creatorId,
+                ct);
+
+        // 3. If the creator doesn't exist or has no Stripe account linked, return 404
+        if (creator is null || string.IsNullOrWhiteSpace(creator.StripeAccountId))
+        {
+            await SendNotFoundAsync(ct);
+            return;
+        }
+
+        // 4. Remove Stripe configuration
+        creator.StripeAccountId = null;
+        creator.IsStripeDetailsSubmitted = false;
+        creator.IsStripeChargesEnabled = false;
+        creator.IsStripePayoutReady = false;
+
+        // 5. Persist changes
+        await dbContext.SaveChangesAsync(ct);
+
+        // 6. Respond with success
+        await SendOkAsync(ct);
+    }
+}