chore(codebase): full cleanup pass

backend/Modules/Memberships/Handlers/CreateMembershipTier.cs

@@ -27,9 +27,9 @@ public class CreateMembershipTierEndpoint(
         CreateMembershipTierRequest req,
         CancellationToken ct)
     {
-        var tierId = Guid.CreateVersion7();
+        Guid tierId = Guid.CreateVersion7();
 
-        var productId = await membershipTierProcessor.CreateAsync(
+        string productId = await membershipTierProcessor.CreateAsync(
             req.CreatorId,
             tierId,
             req.Name,
@@ -37,14 +37,14 @@ public class CreateMembershipTierEndpoint(
             req.Price);
 
         // Record the new Tier
-        var tier = new MembershipTier
+        MembershipTier tier = new()
         {
             Id = tierId,
             CreatorId = req.CreatorId,
             Price = req.Price,
             Name = req.Name,
             Description = req.Description,
-            StripeProductId = productId,
+            StripeProductId = productId
         };
 
         dbContext.MembershipTiers.Add(tier);