feat(ai): add LaTeX typesetting stack (PR 3/5)

Add TeXLive packages for PDF generation from Org-mode and LaTeX documents:
- texlive-latex-base: Core LaTeX packages
- texlive-latex-extra: Additional LaTeX packages
- texlive-fonts-recommended: Recommended fonts
- texlive-xetex: XeTeX engine for Unicode support
- texlive-science: Science/math packages

Depends on PR #7 and #8

ai/Dockerfile

@@ -15,7 +15,10 @@ ENV PLAYWRIGHT_BROWSERS_PATH=/opt/hermes/.playwright
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         build-essential nodejs npm python3 ripgrep ffmpeg gcc python3-dev libffi-dev procps git openssh-client docker-cli tini \
-        curl poppler-utils imagemagick && \
+        curl poppler-utils imagemagick \
+        chromium xvfb fonts-noto-color-emoji fonts-unifont fonts-liberation fonts-ipafont-gothic fonts-wqy-zenhei fonts-tlwg-loma-otf fonts-freefont-ttf \
+        libasound2t64 libatk-bridge2.0-0t64 libatk1.0-0t64 libatspi2.0-0t64 libcairo2 libcups2t64 libdbus-1-3 libdrm2 libgbm1 libglib2.0-0t64 libnspr4 libnss3 libpango-1.0-0 libx11-6 libxcb1 libxcomposite1 libxdamage1 libxext6 libxfixes3 libxkbcommon0 libxrandr2 \
+        texlive-latex-base texlive-latex-extra texlive-fonts-recommended texlive-xetex texlive-science && \
     rm -rf /var/lib/apt/lists/*
 
 # Non-root user for runtime; UID can be overridden via HERMES_UID at runtime