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/redis.yaml

@@ -1,61 +1,11 @@
-# redis.yaml — Redis 7 缓存 (StatefulSet + Service + 持久化卷)
-# ----------------------------------------------------------------------------
-# 组件:
-#   - redis-headless (Headless Service): StatefulSet 稳定标识 redis-0
-#   - redis         (ClusterIP Service): 供后端以 redis:6379 连接
-#   - redis         (StatefulSet):        单实例 Redis 7，无密码，db 0
-# 持久化: volumeClaimTemplates 2Gi + AOF/RDB 落盘
-#
-# 部署: kubectl apply -f redis.yaml
-# ----------------------------------------------------------------------------
----
-# Headless Service — StatefulSet 稳定标识
-apiVersion: v1
-kind: Service
-metadata:
-  name: redis-headless
-  namespace: devops
-  labels:
-    app.kubernetes.io/name: redis
-    app.kubernetes.io/component: cache
-spec:
-  clusterIP: None
-  selector:
-    app.kubernetes.io/name: redis
-  ports:
-    - name: redis
-      port: 6379
-      targetPort: 6379
----
-# ClusterIP Service — 供应用连接
-apiVersion: v1
-kind: Service
-metadata:
-  name: redis
-  namespace: devops
-  labels:
-    app.kubernetes.io/name: redis
-    app.kubernetes.io/component: cache
-spec:
-  type: ClusterIP
-  selector:
-    app.kubernetes.io/name: redis
-  ports:
-    - name: redis
-      port: 6379
-      targetPort: 6379
----
-# StatefulSet
 apiVersion: apps/v1
-kind: StatefulSet
+kind: Deployment
 metadata:
   name: redis
   namespace: devops
   labels:
     app.kubernetes.io/name: redis
-    app.kubernetes.io/component: cache
 spec:
-  serviceName: redis-headless
   replicas: 1
   selector:
     matchLabels:
@@ -69,43 +19,22 @@ spec:
         - name: redis
           image: redis:7-alpine
           imagePullPolicy: IfNotPresent
-          command: ["redis-server"]
-          args:
-            - --appendonly yes          # 开启 AOF
-            - --save 60 1000            # RDB: 60s 内 1000 次变更快照
-            - --databases 1             # 仅使用 db 0
-            - --maxmemory 256mb
-            - --maxmemory-policy allkeys-lru
           ports:
-            - name: redis
-              containerPort: 6379
-          livenessProbe:
-            exec:
-              command: ["redis-cli", "ping"]
-            initialDelaySeconds: 15
-            periodSeconds: 10
+            - containerPort: 6379
           readinessProbe:
             exec:
               command: ["redis-cli", "ping"]
             initialDelaySeconds: 5
-            periodSeconds: 10
-          resources:
-            requests:
-              cpu: 50m
-              memory: 128Mi
-            limits:
-              cpu: 250m
-              memory: 256Mi
-          volumeMounts:
-            - name: data
-              mountPath: /data
-  # ---- 持久化卷 (2Gi) ----
-  volumeClaimTemplates:
-    - metadata:
-        name: data
-      spec:
-        accessModes: ["ReadWriteOnce"]
-        resources:
-          requests:
-            storage: 2Gi
-        # storageClassName: standard   # 按集群实际 StorageClass 调整
+            periodSeconds: 5
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: devops
+spec:
+  selector:
+    app.kubernetes.io/name: redis
+  ports:
+    - port: 6379
+      targetPort: 6379