feat: Enable custom footer messages for update-discussion

[Copilot]

The update-discussion safe output was using the legacy generateFooter function instead of generateFooterWithMessages, preventing users from customizing footer messages via the messages configuration.

Changes

• Updated update_discussion.cjs: Switched from generateFooter to generateFooterWithMessages to respect custom message configuration
• Added test coverage: Verified custom footer templates are properly applied when GH_AW_SAFE_OUTPUT_MESSAGES is configured
• Updated example workflow: Demonstrated the feature in .github/workflows/dev.md

Usage

safe-outputs:
  update-discussion:
    body:
  messages:
    footer: "> 📝 Generated by [{workflow_name}]({run_url})"
    footer-install: "> Install with `gh aw add {workflow_source}`"

Supports template variables: {workflow_name}, {run_url}, {workflow_source}, {triggering_number}

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/user
  • Triggering command: /usr/bin/gh gh api user --jq .login e-github-app-token.git sh /usr/bin/infocmp "prettier" --wrigit gh node infocmp -1 it/ref/tags/v5 node (http block)
  • Triggering command: /usr/bin/gh gh api user --jq .login k/gh-aw/gh-aw/.g--detach --jq /usr/lib/git-core/git --write ../../**/*.json 64/bin/go /usr/lib/git-core/git remo�� tags/v6 (http block)
  • Triggering command: /usr/bin/gh gh api user --jq .login b/workflows -importcfg f2aadee764fa37d99547772697e937842b7/log.json l -w -buildmode=exe e/git -o om/actions/checkout.git om/actions/checkout.git /usr/bin/git by/b1104e9998745sh main -lang=go1.25 git (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)

Original prompt

make the message footer of update-discussion customizable through the frontmatter "messages" object

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