feat: Add LaTeX Docker chapter; update metadata and previous chapters

docker/latex-compiler/Dockerfile

@@ -0,0 +1,20 @@
+FROM debian:trixie-slim
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends \
+      texlive-latex-base \
+      texlive-latex-recommended \
+      texlive-fonts-recommended \
+      lmodern \
+      latexmk \
+ && rm -rf /var/lib/apt/lists/*
+
+# Run as an unprivileged user; keep TeX's font cache out of the mounted folder.
+RUN useradd --create-home --uid 1000 latex
+ENV TEXMFVAR=/tmp/texmf-var
+USER latex
+WORKDIR /work
+
+ENTRYPOINT ["latexmk", "-pdf", "-interaction=nonstopmode", "-halt-on-error"]
+CMD ["hello.tex"]