Stop appending effective-token suffixes in default JavaScript-generated footers

[Copilot]

Default footer generation in the JavaScript safe-output path was still appending effective-token text, which made generated attribution lines noisier than intended. This change removes effective-token suffixes from default footer text while keeping explicit token placeholders available for custom templates.

• Footer rendering behavior

  • Updated actions/setup/js/messages_footer.cjs to stop appending {effective_tokens_suffix} in default footer paths:
    • getFooterMessage(...) (Generated by ...)
    • getFooterAgentFailureIssueMessage(...) (Generated from ...)
    • getFooterAgentFailureCommentMessage(...) (Generated from ...)
  • Existing AI credits and history-link behavior in default footers remains unchanged.

• Custom template compatibility

  • Preserved support for token placeholders in custom message templates.
  • Workflows that explicitly use {effective_tokens_suffix} in configured custom footers continue to render token values.

• Spec-aligned test updates

  • Updated actions/setup/js/messages.test.cjs expectations to reflect that default generated footers no longer include effective-token suffixes.
  • Kept custom-template token placeholder assertions intact.

// Before (default footer path)
let defaultFooter = `> Generated by [${workflowLabel}]({run_url})`;
if (effectiveTokens) defaultFooter += effectiveTokensSuffix;

// After
let defaultFooter = `> Generated by [${workflowLabel}]({run_url})`;

[Copilot]

Pull request overview

Removes “effective token” suffix text from the default JavaScript safe-output footer rendering so generated attribution lines are less noisy, while preserving {effective_tokens_suffix} support for custom templates.

Changes:

• Updated default footer generation in messages_footer.cjs to stop appending effective-token suffixes for getFooterMessage, getFooterAgentFailureIssueMessage, and getFooterAgentFailureCommentMessage.
• Updated messages.test.cjs expectations to reflect the new default footer output while keeping custom-template placeholder behavior covered.

Show a summary per file

File	Description
actions/setup/js/messages_footer.cjs	Stops appending effective-token suffixes in default footer paths while keeping template placeholders available.
actions/setup/js/messages.test.cjs	Updates tests to assert default footers no longer include effective-token suffixes; custom template behavior remains tested.

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• Files reviewed: 2/2 changed files
• Comments generated: 1