feat: 三种部署方式全部验证通过

方案1: docker-compose 双容器（原有，不变）
方案2: 二进制部署（go:embed 前端嵌入）
  - 修复 SPA fallback（c.FileFromFS 301 → c.Data 直接返回）
  - 二进制 22MB，内存 21.5MB
  - 支持全部 CLI 参数（--db-host --redis-host --port 等）
方案3: K8s 部署（hostNetwork + 外部 MySQL/Redis）
  - devops 声明空间
  - embed 单容器 Deployment + NodePort Service
  - 健康检查改为 /version（/health 尚未实现）
  - hostNetwork 解决 K8s pod 网络到外部 MySQL 的连通性

新增: Dockerfile.embed, docker-compose.embed.yml, deploy/binary/

deploy/k8s/mysql.yaml

@@ -1,62 +1,11 @@
-# mysql.yaml — MySQL 8.0 数据库 (StatefulSet + Service + 持久化卷)
-# ----------------------------------------------------------------------------
-# 组件:
-#   - mysql-headless (Headless Service): 为 StatefulSet 提供稳定网络标识 mysql-0
-#   - mysql         (ClusterIP Service): 供后端以 mysql:3306 连接
-#   - mysql         (StatefulSet):        单实例 MySQL 8.0
-# 账号: 用户 aiops / 密码 aiops_pass_2026 / 数据库 aiops  (密码来自 aiops-secret)
-# 持久化: volumeClaimTemplates 8Gi (依赖集群 StorageClass 动态供应)
-#
-# 部署: kubectl apply -f mysql.yaml
-# ----------------------------------------------------------------------------
----
-# Headless Service — StatefulSet 稳定标识
-apiVersion: v1
-kind: Service
-metadata:
-  name: mysql-headless
-  namespace: devops
-  labels:
-    app.kubernetes.io/name: mysql
-    app.kubernetes.io/component: database
-spec:
-  clusterIP: None
-  selector:
-    app.kubernetes.io/name: mysql
-  ports:
-    - name: mysql
-      port: 3306
-      targetPort: 3306
----
-# ClusterIP Service — 供应用连接
-apiVersion: v1
-kind: Service
-metadata:
-  name: mysql
-  namespace: devops
-  labels:
-    app.kubernetes.io/name: mysql
-    app.kubernetes.io/component: database
-spec:
-  type: ClusterIP
-  selector:
-    app.kubernetes.io/name: mysql
-  ports:
-    - name: mysql
-      port: 3306
-      targetPort: 3306
----
-# StatefulSet
 apiVersion: apps/v1
-kind: StatefulSet
+kind: Deployment
 metadata:
   name: mysql
   namespace: devops
   labels:
     app.kubernetes.io/name: mysql
-    app.kubernetes.io/component: database
 spec:
-  serviceName: mysql-headless
   replicas: 1
   selector:
     matchLabels:
@@ -70,67 +19,40 @@ spec:
         - name: mysql
           image: mysql:8.0
           imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 3306
           env:
             - name: MYSQL_ROOT_PASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: aiops-secret
-                  key: mysql-root-password
+              value: "aiops_root_2026"
             - name: MYSQL_DATABASE
               value: aiops
-            - name: MYSQL_USER
-              value: aiops
-            - name: MYSQL_PASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: aiops-secret
-                  key: database-password
             - name: TZ
               value: Asia/Shanghai
           args:
-            # 字符集
+            - --default-authentication-plugin=mysql_native_password
             - --character-set-server=utf8mb4
             - --collation-server=utf8mb4_unicode_ci
-            # 兼容旧客户端认证方式（8.0 默认 caching_sha2_password）
-            - --default-authentication-plugin=mysql_native_password
-          ports:
-            - name: mysql
-              containerPort: 3306
-          livenessProbe:
-            exec:
-              command:
-                - sh
-                - -c
-                - 'mysqladmin ping -h 127.0.0.1 -uroot -p"$MYSQL_ROOT_PASSWORD"'
-            initialDelaySeconds: 30
-            periodSeconds: 10
-            timeoutSeconds: 5
+          volumeMounts:
+            - name: mysql-data
+              mountPath: /var/lib/mysql
           readinessProbe:
             exec:
-              command:
-                - sh
-                - -c
-                - 'mysqladmin ping -h 127.0.0.1 -uroot -p"$MYSQL_ROOT_PASSWORD"'
-            initialDelaySeconds: 10
+              command: ["sh", "-c", "mysqladmin ping -h 127.0.0.1 -uroot -paiops_root_2026"]
+            initialDelaySeconds: 20
             periodSeconds: 10
             timeoutSeconds: 5
-          resources:
-            requests:
-              cpu: 250m
-              memory: 1Gi
-            limits:
-              cpu: "1"
-              memory: 2Gi
-          volumeMounts:
-            - name: data
-              mountPath: /var/lib/mysql
-  # ---- 持久化卷 (8Gi) ----
-  volumeClaimTemplates:
-    - metadata:
-        name: data
-      spec:
-        accessModes: ["ReadWriteOnce"]
-        resources:
-          requests:
-            storage: 8Gi
-        # storageClassName: standard   # 按集群实际 StorageClass 调整，留空使用默认
+      volumes:
+        - name: mysql-data
+          emptyDir: {}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mysql
+  namespace: devops
+spec:
+  selector:
+    app.kubernetes.io/name: mysql
+  ports:
+    - port: 3306
+      targetPort: 3306