Merge branch 'feature/adaptive-bitrate' into collaudo

Integra bitrate adattivo e telemetria, con il mute audio come icona nella toolbar della regia.

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

backend/app/models/stream_session.rb

@@ -15,6 +15,7 @@ class StreamSession < ApplicationRecord
   validates :platform, inclusion: { in: PLATFORMS }
   validates :status, inclusion: { in: STATUSES }
   validates :privacy_status, inclusion: { in: PRIVACY_STATUSES }
+  validates :min_quality_preset, inclusion: { in: Sessions::SelectQuality::MIN_QUALITY_IDS }
 
   before_validation :normalize_privacy_status
   before_validation :ensure_publish_token, on: :create