Add .gitignore for LaTeX build artifacts

.gitignore

@@ -0,0 +1,38 @@
+# LaTeX build artifacts
+*.aux
+*.bbl
+*.blg
+*.fdb_latexmk
+*.fls
+*.log
+*.out
+*.synctex.gz
+*.toc
+*.lof
+*.lot
+*.nav
+*.snm
+*.vrb
+*.dvi
+*.ps
+
+# Generated PDF (recompile from source)
+main.pdf
+
+# Todonotes list
+*.tdo
+
+# Backup files
+*.bak
+*~
+\#*\#
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Editor files
+*.swp
+*.swo
+.vscode/
+.idea/