Billing Stripe, link regia mobile e staff solo trasmissione.

Aggiunge fatturazione club, pagina regia condivisibile senza account, roster squadre e rimuove la modalità controller dall'app (v1.1.0).

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

backend/app/models/user.rb

@@ -16,6 +16,51 @@ class User < ApplicationRecord
     Team.where(id: staff_ids).or(Team.where(id: owner_ids))
   end
 
+  # Squadre da cui l'utente può programmare partite e avviare lo streaming (app).
+  def streamable_teams
+    manageable_teams.includes(:club).select { |team| can_stream_for?(team) }
+  end
+
+  def club_admin?(club)
+    club&.owned_by?(self)
+  end
+
+  def can_schedule_for?(team)
+    return true if team.club&.owned_by?(self)
+
+    membership = user_teams.find_by(team: team)
+    return false if membership&.staff_kind.blank?
+
+    membership.staff_kind == "transmission"
+  end
+
+  def schedulable_teams_for(club)
+    teams = club.teams.order(:name).to_a
+    return teams if club.owned_by?(self)
+
+    teams.select { |team| can_schedule_for?(team) }
+  end
+
+  def can_stream_for?(team)
+    return true if team.club&.owned_by?(self)
+
+    membership = user_teams.find_by(team: team)
+    return false if membership&.staff_kind.blank?
+
+    return true if membership.staff_kind == "transmission"
+
+    Teams::StaffCoverage.new(team).covers_both_roles?(membership)
+  end
+
+  def staff_role_for(team)
+    return "owner" if team.club&.owned_by?(self)
+
+    membership = user_teams.find_by(team: team)
+    return nil unless membership&.staff_kind.present?
+
+    "transmission"
+  end
+
   def primary_club
     owned_clubs.order(:created_at).first
   end