Fix docker compose ps command usage across scripts

Replace deprecated `docker compose ps | grep` patterns with the more reliable `docker compose ps --status running --services | grep` command. This ensures consistent container status checking across backup, restore, and update scripts.

Also fix regex pattern in update.sh for French "oui" validation.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

scripts/restore.sh

@@ -270,7 +270,7 @@ log "Attente du démarrage complet..."
 sleep 10
 MAX_TRIES=30
 COUNTER=0
-until docker compose ps | grep -q 'gitea.*running'; do
+until docker compose ps --status running --services | grep -q '^gitea$'; do
     COUNTER=$((COUNTER + 1))
     if [ $COUNTER -gt $MAX_TRIES ]; then
         log "${YELLOW}Avertissement: Gitea met du temps à démarrer${NC}"