fix(docker): use static ffmpeg with amr support (fixes #5912)

docker/Dockerfile

@@ -41,7 +41,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     iproute2 \
     netcat-openbsd \
     lsof \
-    ffmpeg \
     nano \
     libjemalloc2 \
     && dpkg-reconfigure --frontend noninteractive tzdata \
@@ -114,6 +113,10 @@ FROM prepare_package AS final
 
 ENV LD_PRELOAD="/usr/local/lib/libjemalloc.so"
 
+# 引入支持 amr 编码的静态 ffmpeg
+COPY --from=mwader/static-ffmpeg:7.1.0 /ffmpeg /usr/local/bin/
+COPY --from=mwader/static-ffmpeg:7.1.0 /ffprobe /usr/local/bin/
+
 # python 环境
 COPY --from=prepare_venv --chmod=777 ${VENV_PATH} ${VENV_PATH}
 COPY --from=prepare_venv /usr/local/bin/uv /usr/local/bin/uv