Suggested test: copilot/body-footer

## Motivation

Link to the gh-aw PR: github/gh-aw#60275 — Add additive global footers to safe-output bodies

Adds `safe-outputs.body-footer` (top-level, plus per-handler override) for appending shared content to every safe output that produces a body, supporting `{workflow_name}` and `{run_url}` placeholders, composing with imported-workflow footers and handler-specific footers.

## Proposed test

- **Workflow file**: `test-copilot-body-footer.md`
- **Trigger**: `workflow_dispatch`
- **Engine**: copilot
- **Safe output**: `create-issue`
- **Variant**: standard

## Minimal test prompt sketch

Configure top-level `safe-outputs.body-footer` with a distinguishing string (using `{workflow_name}` and `{run_url}` placeholders) alongside a `create-issue` safe output with its own handler-specific `body-footer`. Have the agent create a single test issue via `samples:`; assert the resulting issue body contains both the global and handler-specific footer text, separated by a blank line, in addition to the generated attribution footer.

## New fixtures or secrets needed

None.

## Notes

No existing test exercises `body-footer` composition. Distinct from `test-copilot-create-issue.md`, which only covers the base create-issue path without footer customization.

> Generated by [🔍 Suggest New E2E Tests](https://github.com/githubnext/gh-aw-test/actions/runs/34683570501) · copilot · auto · 37.1 AIC · ⌖ 6.01 AIC · ⊞ 8.4K · [◷](https://github.com/search?q=repo%3Agithubnext%2Fgh-aw-test+is%3Aissue+%22gh-aw-workflow-call-id%3A+githubnext%2Fgh-aw-test%2Fsuggest-new-e2e-tests%22&type=issues)

Read test-copilot-create-issue.md for the existing create-issue test pattern, then add test-copilot-body-footer.md with a workflow_dispatch trigger and copilot engine. Configure global and handler-specific footers, create one issue through samples, and verify the body contains both placeholders-expanded footers, separated by a blank line, alongside the attribution footer.

Written by the indexing model from the issue text.