feat: multi-arch Docker образы (amd64+arm64), CI/CD, registry

- Dockerfile с multi-stage сборкой для linux/amd64 и linux/arm64
- Gitea Actions CI/CD для автоматической сборки и пуша в registry
- docker-compose с поддержкой multi-arch образов
- install.sh с автоопределением архитектуры и выбором: pull vs build
- uninstall.sh обновлён для Docker-деинсталляции
- README.md обновлён: multi-arch, CI/CD, Gitea registry

docker-compose.server.yml

@@ -0,0 +1,39 @@
+# =============================================================================
+# docker-compose.server.yml — VPS (сервер с публичным IP)
+# Запуск: docker compose -f docker-compose.server.yml up -d
+# =============================================================================
+version: "3.8"
+
+services:
+  wireguard-server:
+    image: git.softuniq.eu/opendoor/wireguard-vps-tunnel-server:latest
+    build:
+      context: ./server
+      platforms:
+        - linux/amd64
+        - linux/arm64
+    container_name: wireguard-server
+    restart: unless-stopped
+    cap_add:
+      - NET_ADMIN
+      - SYS_MODULE
+    network_mode: host
+    volumes:
+      - ./config:/etc/wireguard
+      - /lib/modules:/lib/modules:ro
+    environment:
+      - SERVER_WG_IP=${SERVER_WG_IP:-10.0.0.1}
+      - SERVER_WG_PORT=${SERVER_WG_PORT:-51820}
+      - CLIENT_PUBLIC_KEY=${CLIENT_PUBLIC_KEY:?Укажите CLIENT_PUBLIC_KEY в .env}
+      - CLIENT_WG_IP=${CLIENT_WG_IP:-10.0.0.2}
+      - FORWARD_PORTS=${FORWARD_PORTS:-80,443}
+      - SERVER_PUBLIC_IP=${SERVER_PUBLIC_IP:-}
+      - SERVER_PUBLIC_IFACE=${SERVER_PUBLIC_IFACE:-}
+    ports:
+      - "${SERVER_WG_PORT:-51820}:51820/udp"
+    healthcheck:
+      test: ["CMD", "/healthcheck.sh"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s