Assisted-by: Claude Opus 5.5 via Claude Code

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+FROM ramekin-agent
+
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+# The minimal profile omits these; `just` runs both.
+RUN rustup component add rustfmt clippy