chore(logging): enable rotated logging for supervisord to improve debugging

supervisord.conf

@@ -1,18 +1,20 @@
 [supervisord]
 nodaemon=true
-logfile=/dev/null
-logfile_maxbytes=0
+logfile=/var/log/supervisord/supervisord.log      ; file principale per log di supervisord
+logfile_maxbytes=50MB                             ; ruota quando supera 50MB
+logfile_backups=10                                ; tieni 10 backup (supervisord.log.1 ... .10)
+loglevel=info                                     ; livello: info (normale), riduce rumore ma utile
 
 [program:op-node]
 command=/app/op-node-entrypoint
-stdout_logfile=/dev/fd/1
-stdout_logfile_maxbytes=0
+stdout_logfile=/dev/fd/1                          ; mantieni stdout su container (docker logs)
+stdout_logfile_maxbytes=0                         ; no rotation su stdout (Docker gestisce)
 redirect_stderr=true
 stopwaitsecs=300
 
 [program:op-execution]
 command=/app/execution-entrypoint
-stdout_logfile=/dev/fd/1
-stdout_logfile_maxbytes=0
+stdout_logfile=/dev/fd/1                          ; mantieni stdout su container
+stdout_logfile_maxbytes=0                         ; no rotation su stdout
 redirect_stderr=true
 stopwaitsecs=300