[Code Quality] Add inline verification commands to Quick Start prerequisites

[github-actions]

Description

The Quick Start guide lists prerequisites without showing users how to verify they meet them, forcing navigation away from the page and adding friction to the getting-started experience. The Documentation Noob Test and User Experience Analysis both identified this as a critical usability issue.

Current State

• File: docs/src/content/docs/setup/quick-start.md
• Lines: 17-24 (Prerequisites section)
• Issue: Prerequisites lack inline verification commands
• Impact: Users must leave the page to check if they meet requirements

Suggested Changes

Add verification commands inline with each prerequisite:

## Prerequisites

Before installing, ensure you have:

- ✅ **AI Account** - A [GitHub Copilot](https://github.com/features/copilot) subscription, or a [Anthropic Claude]((www.anthropic.com/redacted) or [OpenAI Codex]((openai.com/redacted) API key
  ``````bash
  # Verify Copilot access:
  gh copilot explain "test"
  # Or verify Claude/Codex API key is set:
  echo $ANTHROPIC_API_KEY  # or $OPENAI_API_KEY

• ✅ GitHub Repository - a GitHub repository you are maintainer on

  # List your repositories with admin access:
  gh repo list --json name,owner,permissions | jq -r '.[] | select(.permissions=="ADMIN") | "\\(.owner.login)/\\(.name)"'

• ✅ GitHub Actions enabled in your repository

  # Check if Actions are enabled (returns workflow files if enabled):
  gh api repos/:owner/:repo/actions/workflows | jq '.total_count'

• ✅ GitHub CLI (gh) - A command-line tool for GitHub. Install here v2.0.0+

  # Verify version:
  gh --version

• ✅ Operating System: Linux, macOS, or Windows with WSL

  # Check your OS:
  uname -s

## Files Affected

- `docs/src/content/docs/setup/quick-start.md` (lines 17-24)

## Success Criteria

- [x] All prerequisites include verification commands
- [x] Commands work across Linux, macOS, and WSL
- [x] Commands are copy-pasteable
- [x] Commands provide clear success/failure output
- [x] No navigation away from page required
- [x] Markdown formatting preserved (using 6 backticks)

## Benefits

- **Faster onboarding**: Users verify all prerequisites in-place without external navigation
- **Reduced setup time**: Eliminates back-and-forth with documentation
- **Higher completion rate**: Fewer users abandon setup due to uncertainty
- **Professional experience**: Shows attention to developer workflow

## Source

Extracted from:
- [User Experience Analysis discussion #12700](https://github.com/githubnext/gh-aw/discussions/12700)
- [Documentation Noob Test discussion #12699](https://github.com/githubnext/gh-aw/discussions/12699)

## Priority

High - Affects every new user at the critical first step

## Estimated Effort

1-2 hours


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> - [x] expires <!-- gh-aw-expires: 2026-02-13T09:14:23.242Z --> on Feb 13, 2026, 9:14 AM UTC

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