fix: photo URLs use ADMIN_URL prefix for Telegram API + resilience improvements

- productHandler, purchaseHandler, viewHandler: prefix relative photo_url
  with ADMIN_URL so Telegram can fetch images via public URL
- bot.js: 5 retries with 5s delay on init, graceful fallback to null
- errorHandler.js: 5 retries on 404 (invalid token), stops polling
  but keeps process alive for admin panel
- config.js: BOT_TOKEN missing logs warning instead of process.exit
- index.js: bot handlers only registered when bot is available,
  admin panel always starts regardless of bot status
- adminWalletsHandler.js: replace throw with logger.warn for missing
  commission wallets (prevents container crash on startup)
- docker-compose.yml: bind admin port to all interfaces (0.0.0.0)
- README.md: updated with Tor proxy architecture, resilience docs
- install.sh: added Tor proxy status check and onion address display

install.sh

@@ -256,6 +256,45 @@ else
     printf "    %s logs -f\n" "$COMPOSE_CMD"
 fi
 
+# ============================================================
+# 9. Tor Proxy — onion-адреса
+# ============================================================
+printf "\n"
+print_step "Проверка Tor-прокси"
+
+TOR_RUNNING=0
+for ATTEMPT in 1 2 3 4 5 6; do
+    sleep 5
+    if docker exec tor-proxy test -s /var/lib/tor/ssh/hostname 2>/dev/null && \
+       docker exec tor-proxy test -s /var/lib/tor/admin/hostname 2>/dev/null; then
+        TOR_RUNNING=1
+        break
+    fi
+    print_info "Попытка $ATTEMPT/6 — Tor генерирует onion-адреса..."
+done
+
+if [ "$TOR_RUNNING" -eq 1 ]; then
+    SSH_ONION=$(docker exec tor-proxy cat /var/lib/tor/ssh/hostname 2>/dev/null || echo "")
+    ADMIN_ONION=$(docker exec tor-proxy cat /var/lib/tor/admin/hostname 2>/dev/null || echo "")
+    if [ -n "$SSH_ONION" ] && [ -n "$ADMIN_ONION" ]; then
+        print_ok "Tor-прокси работает!"
+        printf "\n    ${CYAN}${BOLD}SSH onion:${NC}    %s\n" "$SSH_ONION"
+        printf "    ${CYAN}${BOLD}Admin onion:${NC}   %s\n" "$ADMIN_ONION"
+        printf "\n    ${BOLD}Подключение:${NC}\n"
+        printf "      SSH:    torify ssh root@%s\n" "$SSH_ONION"
+        printf "      Admin:  откройте http://%s в Tor Browser\n" "$ADMIN_ONION"
+        
+        if [ -f "./tor-proxy/get-onions.sh" ]; then
+            sh ./tor-proxy/get-onions.sh 2>/dev/null || true
+        fi
+    else
+        print_warn "Tor запущен, но onion-адреса не найдены"
+    fi
+else
+    print_warn "Tor-прокси не стартовал за 30 секунд. Проверьте логи:"
+    printf "    docker logs tor-proxy\n"
+fi
+
 # ============================================================
 # Готово
 # ============================================================