adjust: code structure

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.23 as builder
+FROM golang:1.23 AS builder
 LABEL authors="nite07"
 
 WORKDIR /app
@@ -8,6 +8,19 @@ ARG version
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w -X live-streamer/constant.Version=${version}" -o live-streamer .
 
 FROM alpine:latest
+WORKDIR /app
+
+RUN apk update && \
+    apk add --no-cache \
+    ffmpeg \
+    fontconfig \
+    ttf-dejavu \
+    ttf-liberation \
+    font-noto \
+    font-noto-emoji \
+    wqy-zenhei \
+    && fc-cache -f 
+
 COPY --from=builder /app/live-streamer /app/live-streamer
 EXPOSE 8080
 VOLUME [ "/app/config.json" ]