Refactor devcontainer setup with MCP servers and dynamic config

Ajout d'une configuration DevContainer complète avec MCP Servers (LSP multi-langages, GitHub/Gitea), scripts de setup automatisés (crazycoder-setup.sh, setup-devcontainer.sh), et optimisation de l’image Docker (rustup/cargo-binstall, nettoyage des artefacts). Mise à jour du README avec documentation MCP et gestion dynamique des variables d’environnement (.env généré automatiquement selon la forge détectée). Simplification des entrypoints et postStartCommand pour une initialisation plus fiable.

Dockerfile

@@ -1,60 +1,75 @@
 FROM debian:bookworm-slim
 
-RUN apt-get update && apt-get install -y \
-    clang clangd llvm-dev libclang-dev pkg-config build-essential git make curl nodejs npm \
-    pylint black flake8 mypy isort logrotate sudo cmake libicu-dev zlib1g-dev \
-    libcurl4-openssl-dev libssl-dev ruby-dev jq python3 python3-pip golang-go rustc cargo \
-    r-base sqlite3 wget bash zsh libgit2-dev \
+# Base system packages — no golang-go/rustc/cargo from apt (replaced by rustup + install_latest_go.sh)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    clang clangd pkg-config build-essential git make curl \
+    nodejs npm \
+    python3 python3-pip pylint black flake8 mypy isort \
+    logrotate sudo cmake zlib1g-dev \
+    libcurl4-openssl-dev libssl-dev \
+    ruby-dev libicu-dev \
+    jq \
+    r-base \
+    sqlite3 wget bash zsh \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
-RUN echo "deb http://deb.debian.org/debian testing main" > /etc/apt/sources.list.d/testing.list
-
+# Go — latest via script only (no apt golang-go)
 COPY tools/install_latest_go.sh /tmp/install_latest_go.sh
-RUN bash /tmp/install_latest_go.sh && \
-    echo "PATH=/usr/local/go/bin:$PATH" >> /root/.bashrc
+RUN bash /tmp/install_latest_go.sh && rm /tmp/install_latest_go.sh
 ENV PATH=/usr/local/go/bin:$PATH
 
+# Rust — rustup only (no apt rustc/cargo), stable only, no rust-docs
 ENV RUSTUP_HOME=/usr/local/rustup
 ENV CARGO_HOME=/usr/local/cargo
 ENV PATH=/usr/local/cargo/bin:$PATH
-RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain stable && \
-    rustup install nightly && \
-    rustup component add rustfmt clippy rust-src rust-docs && \
-    cargo install cargo-edit cargo-watch cargo-outdated cargo-make cargo-binstall
+RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain stable --no-modify-path \
+    && rustup component add rustfmt clippy rust-src rust-analyzer \
+    && rustup install nightly --no-self-update \
+    && rustup component add rust-analyzer --toolchain nightly \
+    # Install cargo tools via binstall (prebuilt binaries, much faster & smaller)
+    && cargo install cargo-binstall \
+    && cargo binstall --no-confirm \
+        cargo-watch cargo-outdated cargo-make \
+        jj-cli aichat \
+    && cargo install cargo-edit \
+    && cargo install --git https://github.com/nilskch/jj-lsp.git \
+    # Clean build cache (keep installed binaries, drop registry & build artifacts)
+    && rm -rf $CARGO_HOME/registry $CARGO_HOME/git /tmp/cargo-*
 
-RUN npm install -g typescript tsc @types/node eslint prettier pyright typescript-language-server
+# Node tools
+RUN npm install -g typescript @types/node eslint prettier pyright typescript-language-server \
+    mcp-server-commands \
+    && npm cache clean --force
 
-RUN cargo binstall --strategies crate-meta-data jj-cli aichat \
-    && cargo install --git https://github.com/nilskch/jj-lsp.git
-
-RUN gem install github-linguist
+# Ruby tools
+RUN gem install github-linguist \
+    && gem cleanup \
+    && rm -rf /var/cache/gem /root/.gem/specs
 
+# Python tools
 RUN pip install --no-cache-dir --break-system-packages ruff fastmcp ipython tasklin
 
-RUN curl -fsSL https://opencode.ai/install | bash && \
-    mkdir -p /root/.config/opencode && \
-    mv /root/.opencode/bin/opencode /usr/local/bin/
-
+# Go tools
 ENV GOPATH=/usr/local/go
 ENV GOBIN=/usr/local/go/bin
 RUN go install golang.org/x/tools/gopls@latest \
-    && go install github.com/isaacphi/mcp-language-server@latest
+    && go install github.com/isaacphi/mcp-language-server@latest \
+    && go install github.com/github/github-mcp-server/cmd/github-mcp-server@latest \
+    && go install gitea.com/gitea/gitea-mcp@latest \
+    && go clean -cache -modcache
 
+# Shell completions
 RUN mkdir -p /etc/bash_completion.d \
-    && curl https://raw.githubusercontent.com/sigoden/aichat/main/scripts/completions/aichat.bash \
+    && curl -fsSL https://raw.githubusercontent.com/sigoden/aichat/main/scripts/completions/aichat.bash \
        > /etc/bash_completion.d/aichat \
     && jj util completion bash > /etc/bash_completion.d/jj
 
-RUN rustup component add rust-analyzer --toolchain nightly
-
+# Non-root user
 ARG USERNAME=devuser
 ARG USER_UID=1000
 ARG USER_GID=1000
 RUN groupadd --gid $USER_GID $USERNAME && \
-    useradd --uid $USER_UID \
-    --gid $USER_GID \
-    -m $USERNAME \
-    --shell /bin/bash && \
+    useradd --uid $USER_UID --gid $USER_GID -m $USERNAME --shell /bin/bash && \
     echo "$USERNAME ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/$USERNAME && \
     chmod 440 /etc/sudoers.d/$USERNAME
 
@@ -64,7 +79,9 @@ RUN chmod +x /usr/local/bin/entrypoint.sh
 COPY bin/* /usr/local/bin/
 RUN chmod +x /usr/local/bin/*
 RUN mkdir -p /home/${USERNAME}/.config \
-    && chown -R ${USERNAME}:${USERNAME} /home/${USERNAME}/.config
+    && mkdir -p /home/${USERNAME}/.cache \
+    && chown -R ${USERNAME}:${USERNAME} /home/${USERNAME}/.config \
+    && chown -R ${USERNAME}:${USERNAME} /home/${USERNAME}/.cache
 COPY --chown=${USERNAME}:${USERNAME} opencode /home/${USERNAME}/.config/opencode
 
 USER $USERNAME