Aggiunge abbonamenti omaggio admin per sponsor e promozioni.

Gli admin possono concedere o revocare Premium Light/Full senza Stripe;
il piano omaggio ha priorità sui webhook e la società vede un messaggio dedicato.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/services/billing/admin_comped_subscription.rb

@@ -0,0 +1,101 @@
+module Billing
+  class AdminCompedSubscription
+    class Error < StandardError; end
+
+    VALID_PLANS = %w[premium_light premium_full].freeze
+
+    def self.grant(club:, plan_slug:, reason:, admin:)
+      new(club: club, plan_slug: plan_slug, reason: reason, admin: admin).grant
+    end
+
+    def self.revoke(club:, admin:)
+      new(club: club, admin: admin).revoke
+    end
+
+    def initialize(club:, plan_slug: nil, reason: nil, admin: nil)
+      @club = club
+      @plan_slug = plan_slug.to_s.presence
+      @reason = reason.to_s.strip.presence
+      @admin = admin
+    end
+
+    def grant
+      raise Error, "Piano non valido" unless @plan_slug.in?(VALID_PLANS)
+
+      release_stripe_schedule!
+
+      AssignPlan.call(
+        club: @club,
+        plan_slug: @plan_slug,
+        status: "active",
+        stripe_attrs: comped_attrs.merge(
+          pending_plan_id: nil,
+          pending_billing_interval: nil,
+          stripe_schedule_id: nil,
+          cancel_at_period_end: false
+        )
+      )
+    end
+
+    def revoke
+      sub = @club.subscription
+      raise Error, "Nessun abbonamento omaggio attivo" unless sub&.admin_comped?
+
+      if sub.stripe_subscription_id.present? && MatchLiveTv.stripe_enabled?
+        stripe_sub = ::Stripe::Subscription.retrieve(sub.stripe_subscription_id)
+        if stripe_sub.status.in?(%w[active trialing past_due])
+          Billing::Stripe::CheckoutSync.from_subscription(stripe_sub, club: @club)
+          clear_comped_flags!(sub.reload)
+          return sub
+        end
+      end
+
+      AssignPlan.call(
+        club: @club,
+        plan_slug: "free",
+        status: "active",
+        stripe_attrs: {
+          admin_comped: false,
+          admin_comped_reason: nil,
+          admin_comped_at: nil,
+          admin_comped_by_id: nil,
+          pending_plan_id: nil,
+          pending_billing_interval: nil,
+          stripe_schedule_id: nil
+        }
+      )
+    end
+
+    private
+
+    def comped_attrs
+      {
+        admin_comped: true,
+        admin_comped_reason: @reason,
+        admin_comped_at: Time.current,
+        admin_comped_by_id: @admin&.id
+      }
+    end
+
+    def clear_comped_flags!(sub)
+      sub.update!(
+        admin_comped: false,
+        admin_comped_reason: nil,
+        admin_comped_at: nil,
+        admin_comped_by_id: nil
+      )
+    end
+
+    def release_stripe_schedule!
+      sub = @club.subscription
+      return if sub.blank? || sub.stripe_schedule_id.blank?
+      return unless MatchLiveTv.stripe_enabled?
+
+      ::Stripe::SubscriptionSchedule.release(sub.stripe_schedule_id)
+    rescue ::Stripe::InvalidRequestError
+      nil
+    ensure
+      sub&.update!(stripe_schedule_id: nil, pending_plan_id: nil, pending_billing_interval: nil)
+    end
+  end
+end