feat: 三种部署方式 — embed单容器 + 二进制部署 + K8s

新增三种部署方式（原有 docker-compose 不受影响）:

1. Docker embed 单容器 (docker-compose.embed.yml):
   - go:embed 前端嵌入后端二进制
   - 不需要 nginx 容器，3容器→2容器
   - 镜像仅 54.8MB (vs 原来 1.16GB)
   - 用法: make docker-embed

2. 二进制部署 (deploy/binary/):
   - make build-binary 生成单二进制
   - install.sh 自动创建 systemd 服务
   - 适合无 Docker 环境
   - 用法: scp aiops + install.sh, bash install.sh install

3. Kubernetes 部署 (deploy/k8s/):
   - devops 命名空间全套 yaml
   - MySQL StatefulSet + Redis StatefulSet + Backend Deployment
   - ConfigMap + Secret + Ingress
   - 用法: kubectl apply -f deploy/k8s/

核心改动:
- backend/cmd/embed.go: go:embed 前端 + SPA fallback 路由
- backend/Dockerfile.embed: 四阶段构建 (前端→后端embed→agent→runtime)
- Makefile: build-binary + docker-embed 目标
- deploy/README.md: 四种部署方式对比文档

docker-compose.embed.yml

@@ -0,0 +1,91 @@
+# ============================================================
+# AIOps 单容器 docker-compose（embed 模式）
+# 前端嵌入后端二进制，不需要独立 nginx 容器
+# 用法: docker-compose -f docker-compose.embed.yml up -d --build
+# 署名 Logan.Li
+# ============================================================
+version: '3.8'
+
+services:
+  mysql:
+    image: mysql:8.0
+    container_name: aiops-mysql
+    restart: unless-stopped
+    environment:
+      MYSQL_ROOT_PASSWORD: rootpassword
+      MYSQL_DATABASE: aiops
+      MYSQL_USER: aiops
+      MYSQL_PASSWORD: aiops_pass_2026
+      TZ: Asia/Shanghai
+    ports:
+      - "3306:3306"
+    volumes:
+      - mysql_data:/var/lib/mysql
+    command: >
+      --default-authentication-plugin=mysql_native_password
+      --character-set-server=utf8mb4
+      --collation-server=utf8mb4_unicode_ci
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "localhost", "-uroot", "-p$$MYSQL_ROOT_PASSWORD"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+      start_period: 30s
+    networks:
+      - aiops-network
+
+  redis:
+    image: redis:7-alpine
+    container_name: aiops-redis
+    restart: unless-stopped
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    command: redis-server --appendonly yes
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - aiops-network
+
+  # 单容器：后端 API (:8080) + 嵌入前端 (:8080)
+  # nginx 不再需要，gin 直接服务静态文件
+  aiops:
+    build:
+      context: .
+      dockerfile: backend/Dockerfile.embed
+    container_name: aiops-app
+    restart: unless-stopped
+    ports:
+      - "80:8080"   # 前端 + API 都走 8080
+      - "8080:8080" # 也可以直接访问 8080
+    volumes:
+      - ./backend/config.yaml:/app/config.yaml
+      - app_logs:/app/logs
+      - app_uploads:/app/uploads
+    depends_on:
+      mysql:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+    networks:
+      - aiops-network
+
+volumes:
+  mysql_data:
+  redis_data:
+  app_logs:
+  app_uploads:
+
+networks:
+  aiops-network:
+    driver: bridge