[dev] Add devcontainers and vscode config templates

.dev/devcontainer/ubuntu/Dockerfile

@@ -0,0 +1,73 @@
+FROM mcr.microsoft.com/devcontainers/base:ubuntu-24.04
+
+ARG USERNAME=vscode
+
+# Workaround for bug: https://github.com/devcontainers/images/issues/1056
+RUN userdel -r ubuntu; usermod -u 1000 $USERNAME; groupmod -g 1000 $USERNAME
+
+RUN apt-get -y update \
+    && apt-get install -y \
+        # Build tools and dependencies for OwnTone
+        autoconf \
+        automake \
+        autotools-dev \
+        bison \
+        build-essential \
+        flex \
+        gawk \
+        gettext \
+        git \
+        gperf \
+        libasound2-dev \
+        libavahi-client-dev \
+        libavcodec-dev \
+        libavfilter-dev \
+        libavformat-dev \
+        libavutil-dev \
+        libconfuse-dev \
+        libcurl4-openssl-dev \
+        libevent-dev \
+        libgcrypt20-dev \
+        libjson-c-dev \
+        libmxml-dev \
+        libplist-dev \
+        libprotobuf-c-dev \
+        libsodium-dev \
+        libsqlite3-dev \
+        libswscale-dev \
+        libtool \
+        libunistring-dev \
+        libwebsockets-dev \
+        libxml2-dev \
+        zlib1g-dev \
+        # Build tools for mmkdocs (OwnTone documentation)
+        python3-pip \
+        # Additional runtime dependencies for dev container
+        avahi-daemon \
+        # Additional debug and devtools for dev container
+        clang \
+        clang-format \
+        clang-tools \
+        gdb \
+        valgrind \
+        # Additional terminal utility applications
+        pipx \
+        # bat - replacement for cat
+        bat \
+        # eza (https://eza.rocks/) - replacement for ls
+        eza \
+        # fuzzy search
+        fzf \
+    # Create folders and set ownership for folders that might be mounted as volumes
+    && mkdir -p /home/$USERNAME/.local/share \
+    && chown -R $USERNAME /home/$USERNAME/.local \
+    && mkdir /commandhistory \
+    && touch /commandhistory/.bash_history \
+    && chown -R $USERNAME /commandhistory \
+    && echo "export PROMPT_COMMAND='history -a' && export HISTFILE=/commandhistory/.bash_history" >> "/home/$USERNAME/.bashrc" \
+    && echo '[[ -f /scripts/init-devcontainer-cli.sh ]] && source /scripts/init-devcontainer-cli.sh' >> "/home/$USERNAME/.bashrc" \
+    # Create folders for owntone-server data
+    && mkdir -p /data/logs /data/music /data/cache /data/conf \
+    && chown -R $USERNAME /data \
+    # Clean up
+    && apt-get clean -y && rm -rf /var/lib/apt/lists/*