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/lib/tasks/recordings.rake

@@ -20,4 +20,37 @@ namespace :recordings do
     orphan = Mediamtx::CleanupOrphanPaths.new.call
     puts "Path MediaMTX orfani rimossi: #{orphan.removed} (saltati: #{orphan.skipped})"
   end
+
+  desc "Elimina copie temporanee YouTube scadute (solo storage, non soft-delete)"
+  task purge_temporary: :environment do
+    count = Recordings::PurgeTemporaryMediaJob.new.perform
+    puts "Purge temporary replays: processed=#{count}"
+  end
+
+  desc "Audit dry-run: recording YouTube con ancora MP4 in Garage (duplicati storici). " \
+       "Cleanup solo se APPLY=1 (non implementato di default — solo report)."
+  task audit_youtube_duplicates: :environment do
+    apply = ENV["APPLY"].to_s == "1"
+    scope = Recording.not_deleted
+                     .where.not(youtube_video_id: [nil, ""])
+                     .where.not(storage_key: [nil, ""])
+                     .where("youtube_video_id NOT LIKE 'mock_%'")
+
+    puts "Audit YouTube duplicates (dry-run=#{!apply}): count=#{scope.count}"
+    scope.find_each do |rec|
+      puts [
+        "id=#{rec.id}",
+        "policy=#{rec.storage_policy}",
+        "key=#{rec.storage_key}",
+        "yt=#{rec.youtube_video_id}",
+        "purged_at=#{rec.local_media_purged_at.inspect}",
+        "temp_expires=#{rec.temp_expires_at.inspect}"
+      ].join(" ")
+    end
+
+    if apply
+      puts "APPLY=1 richiesto ma cleanup storico automatico NON eseguito " \
+           "(fuori scope; solo dry-run supportato)."
+    end
+  end
 end