fix(cluster): update Asterisk CLI health check command to core show uptime

scripts/cluster/check_asterisk.sh

@@ -10,9 +10,9 @@ if ! pidof asterisk >/dev/null 2>&1; then
     exit 1
 fi
 
-# 2. Teste si Asterisk répond aux requêtes CLI (core ping)
-PING_RESP=$(/usr/sbin/asterisk -rx "core ping" 2>/dev/null || true)
-if echo "$PING_RESP" | grep -q "Pong"; then
+# 2. Teste si Asterisk répond aux requêtes CLI (core show uptime)
+RESP=$(/usr/sbin/asterisk -rx "core show uptime" 2>/dev/null || true)
+if echo "$RESP" | grep -qi "uptime"; then
     exit 0
 fi