Add CDN dependency download script and update Dockerfiles for offline web UI

docker/rockchip.Dockerfile

@@ -24,7 +24,15 @@ COPY . .
 RUN --mount=type=cache,target=/root/.cache/go-build CGO_ENABLED=0 go build -ldflags "-s -w" -trimpath
 
 
-# 2. Final image
+# 2. Download CDN dependencies for offline web UI
+FROM alpine AS download-cdn
+RUN apk add --no-cache wget
+COPY www/ /web/
+COPY docker/download_cdn.sh /tmp/
+RUN sh /tmp/download_cdn.sh /web
+
+
+# 3. Final image
 FROM python:${PYTHON_VERSION}
 
 # Prepare apt for buildkit cache
@@ -42,10 +50,10 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked --mount=type=cache,t
 
 COPY --from=build /build/go2rtc /usr/local/bin/
 ADD --chmod=755 https://github.com/MarcA711/Rockchip-FFmpeg-Builds/releases/download/6.1-8-no_extra_dump/ffmpeg /usr/local/bin
+COPY --from=download-cdn /web /var/www/go2rtc
+COPY --chmod=755 docker/entrypoint.sh /usr/local/bin/
 
 EXPOSE 1984 8554 8555 8555/udp
-ENTRYPOINT ["/usr/bin/tini", "--"]
+ENTRYPOINT ["/usr/bin/tini", "--", "/usr/local/bin/entrypoint.sh"]
 VOLUME /config
 WORKDIR /config
-
-CMD ["go2rtc", "-config", "/config/go2rtc.yaml"]