同步上游 0921 版 zip（新增 emby 播放等 20 处变更）

Dockerfile

@@ -1,4 +1,7 @@
-FROM golang:1.26-bookworm AS build
+ARG GO_IMAGE=golang:1.26-bookworm
+ARG RUNTIME_IMAGE=debian:bookworm-slim
+FROM ${GO_IMAGE} AS build
+ENV GOPROXY=https://goproxy.cn,direct GOSUMDB=off
 WORKDIR /src
 COPY go.mod go.sum ./
 RUN go mod download
@@ -6,7 +9,7 @@ COPY main.go ./
 COPY internal ./internal
 RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/juku .
 
-FROM debian:bookworm-slim
+FROM ${RUNTIME_IMAGE}
 ENV TZ=Asia/Shanghai
 RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates ffmpeg tzdata tini curl && rm -rf /var/lib/apt/lists/* && groupadd --gid 1000 juku && useradd --uid 1000 --gid juku --no-create-home juku && mkdir -p /data /downloads && chown juku:juku /data /downloads
 COPY --from=build /out/juku /usr/local/bin/juku