chore: fixed formating and adjusting other components

paper/src/preamble.tex

@@ -1,6 +1,10 @@
+% Encoding
+\usepackage[utf8]{inputenc}
+
 % Math packages (load before fonts to avoid conflicts)
 \usepackage{amsmath}
 \usepackage{amsthm}
+\usepackage{appendix}
 
 % Define theorem environments
 \newtheorem{theorem}{Theorem}
@@ -53,3 +57,13 @@
 % Use biblatex with authoryear style for in-text citations like (Author, Year)
 \usepackage[backend=bibtex,style=authoryear,natbib=true,maxcitenames=2]{biblatex}
 \addbibresource{bib/references.bib}
+
+% Page headers (SciTech format)
+\usepackage{fancyhdr}
+\setlength{\headheight}{14.5pt}
+\addtolength{\topmargin}{-2.5pt}
+\pagestyle{fancy}
+\fancyhf{}
+\fancyhead[L]{PHANTOM}
+\fancyhead[R]{\thepage}
+\renewcommand{\headrulewidth}{0pt}