feat(download):增加虎标档案模板的下载，并在Docker镜像中加入下载支持。

Dockerfile

@@ -10,11 +10,20 @@ ADD . /app
 RUN CGO_ENABLED=0 GOOS=linux go build -tags=jsoniter -v -o server .
 
 FROM alpine:latest AS production
+RUN echo "https://mirror.tuna.tsinghua.edu.cn/alpine/v3.4/main/" > /etc/apk/repositories
 RUN apk add --no-cache tzdata
+RUN apk update \
+        && apk upgrade \
+        && apk add --no-cache bash \
+        bash-doc \
+        bash-completion \
+        && rm -rf /var/cache/apk/* \
 ENV TZ=Asia/Shanghai
 RUN mkdir /app
 WORKDIR /app
 COPY --from=builder /app/server .
 COPY settings.yaml .
 COPY regions.csv .
+RUN mkdir /app/assets
+COPY ./assets/* /app/assets
 CMD ["./server"]