Fix registrazione replay in produzione via PublisherSync.

MediaMTX distroless non invoca i webhook wget: accendiamo record sul path quando il telefono pubblica RTMP e lo spegniamo in pausa/offline.

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

backend/app/services/recordings/upload_from_session.rb

@@ -94,6 +94,7 @@ module Recordings
     end
 
     def cleanup_mediamtx_path
+      Mediamtx::PublisherSync.forget_recording_state!(@session.id)
       Mediamtx::Client.new.delete_path(@session)
     rescue Mediamtx::Client::Error => e
       Rails.logger.warn("[Recordings::UploadFromSession] delete_path: #{e.message}")