feat: harden enterprise server setup

[VectoDE]

Summary

• add enterprise-grade logging, error handling, and configurable domain parsing to the setup script
• integrate security hardening, automated backups, and improved docker stack generation
• refresh documentation with new usage guidance and operational notes

Testing

• bash -n install-configure-script.bash

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https://chatgpt.com/codex/tasks/task_e_68f8ffc21664832cac9b13823bd8f2ee

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Do not require curl/wget before installing dependencies

The new verify_prerequisites exits if curl, wget, tar, or systemctl are not available, but these tools are installed later by install_common. On a fresh Debian/CentOS image that does not include curl or wget by default, the script now aborts before it ever reaches the installation phase, whereas the previous version would bootstrap successfully. Consider dropping this check or running it after install_common so that the script can still bring a minimal system up to a usable state.

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