Aggiunge monitoraggio ops: health check, log scanner, dashboard e notifiche.

Introduce incidenti con dedup, job Sidekiq ogni 3 min, scan log cron, /up/deep,
dashboard /admin/ops e push ntfy; include Sentry opzionale e fix test suite.

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

infra/.env.production.example

@@ -51,6 +51,9 @@ SMTP_AUTH=plain
 SMTP_STARTTLS=true
 PASSWORD_RESET_EXPIRY_HOURS=2
 
+# Disco video dedicato (recordings MediaMTX + dati Garage). Montare es. 800GB su /media/videos
+MATCHLIVETV_VIDEOS_ROOT=/media/videos/matchlivetv
+
 # Replay storage — Garage (obbligatorio in produzione per Premium replay)
 # Dopo il primo deploy: bash scripts/setup_garage_production.sh (crea garage.prod.toml + chiavi)
 REPLAY_STORAGE_ENDPOINT=http://garage:3900
@@ -59,3 +62,23 @@ REPLAY_STORAGE_REGION=garage
 REPLAY_STORAGE_ACCESS_KEY_ID=
 REPLAY_STORAGE_SECRET_ACCESS_KEY=
 REPLAY_STORAGE_FORCE_PATH_STYLE=true
+
+# Ops monitoring — notifiche push (ntfy) e health check
+# App ntfy: https://ntfy.sh — iscriviti al topic e imposta OPS_NTFY_URL
+OPS_NTFY_URL=https://ntfy.sh/matchlivetv-ops-YOUR_SECRET_TOPIC
+OPS_NTFY_TOKEN=
+OPS_ALERT_EMAIL=
+OPS_NOTIFY_SEVERITIES=critical
+OPS_NOTIFY_COOLDOWN_MINUTES=30
+OPS_HEALTH_INTERVAL_SECS=180
+OPS_HEALTH_TOKEN=
+OPS_DISK_WARN_PERCENT=80
+OPS_DISK_CRIT_PERCENT=90
+OPS_RECORDINGS_WARN_GB=20
+OPS_RECORDINGS_CRIT_GB=50
+OPS_SIDEKIQ_STALE_SECS=300
+OPS_LOG_SUBSCRIBER=false
+
+# Sentry (opzionale — error tracking produzione)
+SENTRY_DSN=
+SENTRY_TRACES_SAMPLE_RATE=0.1