Aggiunge replay YouTube temporaneo, pull registrazioni dai CPX e snapshot ingest in admin.

Così overflow Hetzner e VOD YouTube restano in archivio dopo lo spegnimento del nodo, e la colonna ingest non si svuota.

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

backend/app/jobs/streams/autoscaler_job.rb

@@ -8,6 +8,8 @@ module Streams
 
     INTERVAL_SECS = ENV.fetch("STREAM_AUTOSCALE_INTERVAL_SECS", "60").to_i
     REDIS_CHAIN_KEY = "streams:autoscaler:chain"
+    KICK_DEBOUNCE_KEY = "streams:autoscaler:kick"
+    KICK_DEBOUNCE_SECS = ENV.fetch("STREAM_AUTOSCALE_KICK_DEBOUNCE_SECS", "5").to_i
 
     def self.ensure_chain
       return unless redis
@@ -17,6 +19,16 @@ module Streams
       perform_in(INTERVAL_SECS)
     end
 
+    # Kick immediato (es. NoCapacity / soft-free bassi). Debounce anti-flood Sidekiq.
+    def self.kick!
+      return false unless Streams::Autoscaler.enabled?
+      return false unless redis
+      return false unless redis.set(KICK_DEBOUNCE_KEY, "1", nx: true, ex: KICK_DEBOUNCE_SECS)
+
+      perform_async
+      true
+    end
+
     def self.redis
       @redis ||= Redis.new(url: ENV.fetch("REDIS_URL", "redis://localhost:6379/0"))
     rescue Redis::CannotConnectError