chore: Sentry issues (#4623)

Fixes various issues reported on sentry

- Twilio channel creation validation errors
- Room Channel error with nil class
- Webhook Uri exception

app/builders/contact_builder.rb

@@ -15,11 +15,10 @@ class ContactBuilder
   end
 
   def create_contact_inbox(contact)
-    ::ContactInbox.create!(
+    ::ContactInbox.create_with(hmac_verified: hmac_verified || false).find_or_create_by!(
       contact_id: contact.id,
       inbox_id: inbox.id,
-      source_id: source_id,
-      hmac_verified: hmac_verified || false
+      source_id: source_id
     )
   end