Aggiunge i tornei con hub, pagina pubblica e tabellone per semifinali e finali.

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

backend/app/models/team.rb

@@ -2,6 +2,8 @@ class Team < ApplicationRecord
   include Brandable
   include Coverable
 
+  INTERNAL_KINDS = %w[tournament_broadcast].freeze
+
   belongs_to :club
   has_many :user_teams, dependent: :destroy
   has_many :users, through: :user_teams
@@ -9,6 +11,10 @@ class Team < ApplicationRecord
   has_many :recordings, dependent: :destroy
   has_many :team_invitations, dependent: :destroy
   has_many :roster_members, class_name: "TeamRosterMember", dependent: :destroy
+  has_one :broadcast_tournament, class_name: "Tournament", foreign_key: :broadcast_team_id, inverse_of: :broadcast_team
+
+  scope :visible, -> { where("internal_kind IS NULL OR internal_kind = ''") }
+  scope :tournament_broadcast, -> { where(internal_kind: Tournament::INTERNAL_TEAM_KIND) }
 
   has_one_attached :photo_file
 
@@ -61,6 +67,10 @@ class Team < ApplicationRecord
     Rails.application.routes.url_helpers.public_team_page_path(slug)
   end
 
+  def tournament_broadcast?
+    internal_kind == Tournament::INTERNAL_TEAM_KIND
+  end
+
   def sport_label
     Sports::Catalog.find_optional(sport_key)&.dig(:label) || sport_key.to_s.humanize
   end