Improve LaTeX font configuration and add log files to gitignore

- Set DejaVu fonts for serif, sans, and mono
- Add longtable, booktabs, array, calc packages for tables
- Add unicode symbol substitutions for checkmark and times
- Ignore *.log files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -9,3 +9,4 @@ dist-newstyle
 /svg-inkscape/
 dist-newstyle
 output/
+*.log

src/Docster/LaTeX.hs

@@ -15,9 +15,16 @@ latexTemplate bodyContent = T.unlines
   [ "\\documentclass{article}"
   , "\\usepackage[utf8]{inputenc}"
   , "\\usepackage{fontspec}"
+  , "\\setmainfont{DejaVu Serif}[Scale=1.0]"
+  , "\\setsansfont{DejaVu Sans}[Scale=1.0]"
+  , "\\setmonofont{DejaVu Sans Mono}[Scale=0.85]"
   , "\\usepackage{graphicx}"
   , "\\usepackage{adjustbox}"
   , "\\usepackage{geometry}"
+  , "\\usepackage{longtable}"
+  , "\\usepackage{booktabs}"
+  , "\\usepackage{array}"
+  , "\\usepackage{calc}"
   , "\\geometry{margin=1in}"
   , "\\usepackage{hyperref}"
   , "\\usepackage{enumitem}"
@@ -30,6 +37,10 @@ latexTemplate bodyContent = T.unlines
   , syntaxHighlightingCommands
   , "\\providecommand{\\tightlist}{%"
   , "  \\setlength{\\itemsep}{0pt}\\setlength{\\parskip}{0pt}}"
+  , "\\newcommand{\\real}[1]{#1}"
+  , "% Unicode symbol substitutions"
+  , "\\providecommand{\\checkmark}{\\ensuremath{\\checkmark}}"
+  , "\\providecommand{\\times}{\\ensuremath{\\times}}"
   , "% Auto-scale oversized images to fit page"
   , "\\makeatletter"
   , "\\def\\maxwidth{\\ifdim\\Gin@nat@width>\\linewidth\\linewidth\\else\\Gin@nat@width\\fi}"