Stabilizza live YouTube/RTMP e fix crash rotazione mobile.

Pipeline YouTube con relay, overlay e publisher sync lato backend; fix GL pauseGlDuringRotation su Android per evitare crash in rotazione durante lo streaming Flutter.

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

scripts/build_mobile_apk_prod.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# APK release per telefono → API produzione
+set -euo pipefail
+export PATH="${HOME}/flutter/bin:${PATH}"
+
+API_BASE_URL="${API_BASE_URL:-https://www.matchlivetv.it}"
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+
+cd "$ROOT/mobile"
+flutter pub get
+flutter build apk --release \
+  --dart-define="API_BASE_URL=${API_BASE_URL}"
+
+echo "APK: mobile/build/app/outputs/flutter-apk/app-release.apk"
+echo "API_BASE_URL=${API_BASE_URL}"

scripts/overnight_youtube_e2e.sh

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+#!/usr/bin/env bash
+# Test YouTube notturno sul server (retry fino a successo).
+set -euo pipefail
+HOST="${DEPLOY_HOST:-eminux@192.168.1.146}"
+LOG="/tmp/youtube_e2e_overnight.log"
+
+echo "Avvio test YouTube → $LOG"
+ssh "$HOST" "docker cp /opt/matchlivetv/backend/lib/tasks/youtube_e2e.rake infra-rails-1:/app/lib/tasks/youtube_e2e.rake"
+ssh "$HOST" "docker exec infra-rails-1 bin/rails runner \"Redis.new(url: ENV['REDIS_URL']).del('youtube_api:rate_limited_until')\""
+ssh "$HOST" "nohup docker exec infra-rails-1 bin/rails youtube:e2e >> $LOG 2>&1 &"
+echo "Monitor: ssh $HOST tail -f $LOG"