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

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

backend/app/services/tournaments/destroy.rb

@@ -0,0 +1,46 @@
+module Tournaments
+  class Destroy
+    class LiveBroadcastError < StandardError; end
+
+    def self.call(tournament:)
+      new(tournament).call
+    end
+
+    def initialize(tournament)
+      @tournament = tournament
+    end
+
+    def call
+      raise LiveBroadcastError, I18n.t("flash.tournaments.delete_blocked_live") if live_broadcast?
+
+      team = @tournament.broadcast_team
+      Tournament.transaction do
+        purge_recordings!
+        @tournament.update_column(:broadcast_team_id, nil) if team
+        @tournament.destroy!
+        destroy_orphan_broadcast_team!(team)
+      end
+    end
+
+    private
+
+    def live_broadcast?
+      StreamSession.where(
+        match_id: @tournament.matches.select(:id),
+        status: %w[connecting live reconnecting paused]
+      ).exists?
+    end
+
+    def purge_recordings!
+      session_ids = StreamSession.where(match_id: @tournament.matches.select(:id)).select(:id)
+      Recording.where(stream_session_id: session_ids).find_each(&:destroy!)
+    end
+
+    def destroy_orphan_broadcast_team!(team)
+      return unless team&.tournament_broadcast?
+      return if Tournament.exists?(broadcast_team_id: team.id)
+
+      team.destroy!
+    end
+  end
+end