Fix: Use docker/ prefix for all private registry images

- Updated all image paths to include docker/ prefix
- .gitlab-ci.yml: 192.168.1.154:31010/docker/alpine:latest
- Dockerfile: Both build and run stages use docker/alpine:latest
- Matches private registry structure where images are in docker/ directory

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitlab-ci.yml

@@ -12,7 +12,7 @@ variables:
 # 构建镜像
 build_image:
   stage: build
-  image: 192.168.1.154:31010/alpine:latest
+  image: 192.168.1.154:31010/docker/alpine:latest
   script:
     - apk add --no-cache docker-cli
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY

Dockerfile

@@ -1,5 +1,5 @@
 # Build Stage
-FROM 192.168.1.154:31010/alpine:latest AS builder
+FROM 192.168.1.154:31010/docker/alpine:latest AS builder
 
 WORKDIR /app
 
@@ -19,7 +19,7 @@ COPY . .
 RUN go build -o server ./cmd/server
 
 # Run Stage
-FROM 192.168.1.154:31010/alpine:latest
+FROM 192.168.1.154:31010/docker/alpine:latest
 
 WORKDIR /app