Elimina i path MediaMTX orfani dopo ogni diretta.

Corregge il cleanup dei path live/match_{uuid}, rimuove sempre il path a fine sessione e lo esegue ogni ora via cron.

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

backend/app/jobs/recordings/cleanup_local_job.rb

@@ -5,9 +5,11 @@ module Recordings
 
     def perform
       result = Recordings::CleanupLocal.new.call
+      orphan = Mediamtx::CleanupOrphanPaths.new.call
       Rails.logger.info(
         "[Recordings::CleanupLocalJob] removed=#{result.removed} " \
-        "freed=#{result.freed_bytes} skipped=#{result.skipped}"
+        "freed=#{result.freed_bytes} skipped=#{result.skipped} " \
+        "orphan_paths=#{orphan.removed}"
       )
     end
   end