Express script, v3 improvements, SSV fixes, dualboot fixes, README

[mateussiqueira]

What changed

bypass-mdm-express.sh (new)

All-in-one script with backup + bypass + restore. Designed to be the simplest way to bypass MDM:

• Put it on an external SSD, run it from there — no curl, no downloads
• Automatic backup of original state before making changes
• Restore everything when needed (take to Apple for re-enrollment, then restore)
• Backup stored on the SSD itself (.bypass-backup/)
• Runs from Recovery mode (proven path)

bypass-mdm-v3.sh (improvements)

Based on PR #170 by marclllaks with hardening:

• More robust Data volume detection (regex-based awk handles tree-drawing chars)
• set -euo pipefail for early error detection
• All output functions consistently use stderr (fix from PR Fix: Add FileVault support and proper volume mounting in Recovery Mode #144)
• Detects existing user and offers to delete/recreate (fixes Password does not work #84)
• Adds user to FileVault via fdesetup (fixes Created user not showing on login screen #88)
• Uses set +e on critical dscl blocks to avoid aborting on minor errors

bypass-mdm-v2.sh (critical fix)

• SSV fix: now writes to Data volume paths (/Volumes/Data/private/etc/hosts) instead of System volume
• Same fix for ConfigurationProfiles paths
• set -euo pipefail

bypass-mdm-dualboot.sh (bug fixes)

• Typo: Machintosh -> Macintosh
• Missing /var/ in ConfigurationProfiles path fixed
• Color code fixed (RED -> NC)
• SSV fix: writes to Data volume on the target installation

README.md

• Unified in English
• Comparison table for all 5 scripts
• Express script instructions