log_info/log_error were writing to stdout, which corrupted the
backup path returned by backup_preserved_dirs() via command
substitution. this caused restore to fail silently.
- add adaptive terminal sizing for all whiptail dialogs (wt_get_size)
- add new wrapper functions: wt_checklist, wt_radiolist, wt_menu
- add safe parser wt_parse_choices to replace eval
- improve NEWT_COLORS theme with better contrast (brightgreen/brightcyan)
- add new logging functions: log_header, log_subheader, log_divider, log_box
- add spinner animation utilities for progress indication
- expand color palette with bright variants and text styles
- update 04_wizard.sh to use new whiptail wrappers
- Replaced standard input prompts with whiptail dialogs in 03_generate_secrets.sh and 05_configure_services.sh for domain, email, OpenAI API key, and n8n worker count.
- Added validation messages using whiptail for empty inputs and invalid formats.
- Introduced new utility functions in utils.sh for whiptail integration, ensuring the script checks for whiptail availability.
- Introduced a series of scripts to automate system preparation, Docker installation, secret generation, service execution, and final reporting.
- Implemented logging functions for better visibility during script execution.
- Ensured checks for required files and user inputs to enhance robustness.
- Added functionality for managing Docker services and generating a comprehensive installation summary.
