feat: wifi 连接，网络校时，MQTT。

.devcontainer/Dockerfile

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+ARG VARIANT=bullseye
+FROM debian:${VARIANT}
+ENV DEBIAN_FRONTEND=noninteractive
+ENV LC_ALL=C.UTF-8
+ENV LANG=C.UTF-8
+
+# Arguments
+ARG CONTAINER_USER=esp
+ARG CONTAINER_GROUP=esp
+ARG TOOLCHAIN_VERSION=1.62.0.0
+ARG ESP_IDF_VERSION=release/v4.4
+ARG ESP_BOARD=esp32
+ARG INSTALL_RUST_TOOLCHAIN=install-rust-toolchain.sh
+
+# Install dependencies
+RUN apt-get update \
+    && apt-get install -y git curl gcc clang ninja-build libudev-dev unzip xz-utils\
+    python3 python3-pip python3-venv libusb-1.0-0 libssl-dev pkg-config libtinfo5 libpython2.7 \
+    && apt-get clean -y && rm -rf /var/lib/apt/lists/* /tmp/library-scripts
+
+# Set users
+RUN adduser --disabled-password --gecos "" ${CONTAINER_USER}
+USER ${CONTAINER_USER}
+WORKDIR /home/${CONTAINER_USER}
+
+# Install Rust toolchain, extra crates and esp-idf
+ENV PATH=${PATH}:/home/${CONTAINER_USER}/.cargo/bin:/home/${CONTAINER_USER}/opt/bin
+
+ADD --chown=${CONTAINER_USER}:${CONTAINER_GROUP} \
+    https://github.com/esp-rs/rust-build/releases/download/v${TOOLCHAIN_VERSION}/${INSTALL_RUST_TOOLCHAIN} \
+    /home/${CONTAINER_USER}/${INSTALL_RUST_TOOLCHAIN}
+
+RUN chmod a+x ${INSTALL_RUST_TOOLCHAIN} \
+    && ./${INSTALL_RUST_TOOLCHAIN} \
+    --extra-crates "ldproxy cargo-espflash wokwi-server web-flash" \
+    --export-file /home/${CONTAINER_USER}/export-esp.sh \
+    --esp-idf-version "${ESP_IDF_VERSION}" \
+    --minified-esp-idf "YES" \
+    --build-target "${ESP_BOARD}" \
+    && rustup component add clippy rustfmt
+
+# Activate ESP environment
+RUN echo "source /home/${CONTAINER_USER}/export-esp.sh" >> ~/.bashrc
+
+CMD [ "/bin/bash" ]