Update project name in README.md

docs: remove duplicate table of contents

docs: standardize README, add LICENSE, CONTRIBUTING, SECURITY

fix: Correct automation mechanism - uses cron not systemd timers

fix: Correct sudo requirements - all commands work without sudo

docs: Consolidate all documentation into comprehensive README

Fix: Convert aliases to functions for universal shell compatibility

Fix: Auto-updates detection logic

Fix: Clean up ANSI escape codes and improve UI clarity

Add comprehensive test results documentation

Fix: Handle clear command and readonly OS variable

Refactor: Clean code improvements - set -euo pipefail, modular functions, DRY principle

Fix integer error in update count and improve FreshClam status message

Optimize scan speed: quick mode 30-90s, exclude cache/node_modules, fix update count errors

Add progress indicators and fix alias activation