Replace sequential "how far" installer with interactive multi-select module chooser

[Copilot]

The shared installer forced users through a sequential "how far do you want to go?" prompt, making it impossible to skip earlier steps or run non-contiguous modules.

Changes

• shared/setup.sh — replaces the PS3/select sequential loop with a multi_select_menu function; users navigate with ↑/↓, toggle with SPACE, and confirm with ENTER; selected modules run in their original numbered order regardless of selection order; empty selection re-prompts
• custom-words.txt — adds civis, cnorm, setab, padlen (new tput capability names) to prevent cspell failures

Since all flavor setup-shared.sh files are symlinks to shared/setup.sh, this single change covers every supported OS flavor.

Select the modules to install:
 ◉ Updating OS packages and prepare the system
 ◉ Install Docker
 ○ Authenticate to ghcr.io
 ◉ Install configured stacks
 ○ Install GitHub Actions runner

Use ↑/↓ to move, SPACE to select/deselect, ENTER to confirm.

The --stacks-only and --runner-only flags in init.sh are preserved for non-interactive/scripted use.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/graphql
  • Triggering command: `/usr/bin/gh gh issue comment 37 --repo uicpharm/docker-host --body ## Architectural Analysis & Implementation Roadmap

Great idea ��� and the multi_select_menu function already posted here is exactly the right tool. Here's a breakdown of what would need to change, what to watch out for, and a couple of design decisions` (http block)

• Triggering command: /usr/bin/gh gh auth status (http block)
• https://api.github.com/repos/uicpharm/docker-host/issues/37
  • Triggering command: /usr/bin/curl curl -s -o /dev/null -w %{http_code} -H Authorization: token ****** -H Accept: application/vnd.github.v3+json REDACTED (http block)
• https://api.github.com/repos/uicpharm/docker-host/issues/37/comments
  • Triggering command: /usr/bin/curl curl -v -X POST -H Authorization: ****** -H Content-Type: application/json -H Accept: application/vnd.github+json -H X-GitHub-Api-Version: 2022-11-28 REDACTED -d {"body":"test"} (http block)
  • Triggering command: /usr/bin/curl curl -s -X POST -H Authorization: ****** -H Content-Type: application/json -H Accept: application/vnd.github+json -H X-GitHub-Api-Version: 2022-11-28 REDACTED -d {"body":"test"} (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

---

🔒 GitHub Advanced Security automatically protects Copilot coding agent pull requests. You can protect all pull requests by enabling Advanced Security for your repositories. Learn more about Advanced Security.