refactor(Dockerfile): 简化时区文件拷贝并移除无用文件拷贝

移除单独拷贝上海时区文件改为拷贝整个时区目录
删除无用的/etc目录拷贝

Dockerfile

@@ -28,7 +28,7 @@ FROM alpine:latest
 
 # Copy CA certificates and timezone data
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=builder /usr/share/zoneinfo/Asia/Shanghai /usr/share/zoneinfo/Asia/Shanghai
+COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
 
 ENV TZ=Asia/Shanghai
 
@@ -36,7 +36,6 @@ ENV TZ=Asia/Shanghai
 WORKDIR /app
 
 COPY --from=builder /app/ppanel /app/ppanel
-COPY --from=builder /build/etc /app/etc
 
 # Expose the port (optional)
 EXPOSE 8080