Subscription tests and domain (#2209)

* Save work

* Subscriptions and trials domain

* Store family ID on customer

* Remove indirection of stripe calls

* Test simplifications

* Update brakeman

* Fix stripe tests in CI

* Update billing page to show subscription details

* Remove legacy columns

* Complete billing settings page

* Fix hardcoded plan name

* Handle subscriptions for self hosting mode

* Lint fixes

app/models/provider/stripe/event_processor.rb

@@ -1,7 +1,6 @@
 class Provider::Stripe::EventProcessor
-  def initialize(event:, client:)
+  def initialize(event)
     @event = event
-    @client = client
   end
 
   def process
@@ -9,7 +8,7 @@ class Provider::Stripe::EventProcessor
   end
 
   private
-    attr_reader :event, :client
+    attr_reader :event
 
     def event_data
       event.data.object