Fix hub diretta: considera solo l'ultima sessione, non idle orfane.

Dopo «Termina trasmissione» la partita restava visibile se esisteva una vecchia sessione idle precedente a quella ended; l'hub e l'app usano ora lo stato dell'ultima sessione.

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

backend/app/controllers/api/v1/matches_controller.rb

@@ -130,9 +130,7 @@ module Api
       end
 
       def active_session_for(match)
-        match.stream_sessions
-             .order(created_at: :desc)
-             .find { |s| !%w[ended error].include?(s.status) }
+        match.active_stream_session
       end
     end
   end

backend/app/controllers/public/matches_controller.rb

@@ -94,9 +94,7 @@ module Public
     end
 
     def active_session_for(match)
-      match.stream_sessions
-           .order(created_at: :desc)
-           .find { |s| !%w[ended error].include?(s.status) }
+      match.active_stream_session
     end
   end
 end

backend/app/models/match.rb

@@ -34,8 +34,10 @@ class Match < ApplicationRecord
   end
 
   def active_stream_session
-    stream_sessions.sort_by { |s| s.created_at }.reverse
-      .find { |s| !%w[ended error].include?(s.status) }
+    latest = stream_sessions.max_by(&:created_at)
+    return nil if latest.nil? || latest.status.in?(%w[ended error])
+
+    latest
   end
 
   def deletable?

backend/spec/models/match_scheduling_spec.rb

@@ -53,6 +53,27 @@ RSpec.describe Match, "scheduling scopes" do
       expect(match.coach_hub_visible?).to be(false)
     end
 
+    it "nasconde partita con diretta terminata anche se resta una sessione idle vecchia" do
+      match = team.matches.create!(opponent_name: "Avversario", sets_to_win: 3)
+      StreamSession.create!(
+        match: match,
+        user: user,
+        platform: "matchlivetv",
+        status: "idle",
+        created_at: 3.days.ago
+      )
+      StreamSession.create!(
+        match: match,
+        user: user,
+        platform: "matchlivetv",
+        status: "ended",
+        created_at: 1.hour.ago
+      )
+
+      expect(match.active_stream_session).to be_nil
+      expect(match.coach_hub_visible?).to be(false)
+    end
+
     it "nasconde partita programmata nel passato mai trasmessa" do
       match = team.matches.create!(
         opponent_name: "Missed",