Cannot apply PR #2704 review-thread fixes on current branch (missing dry-run code path)

[Copilot]

This task targets unresolved review comments in PR #2704 around --dry-run behavior. The requested fixes are in code paths that are not present in the current checked-out branch.

• Problem context

  • The review thread requests targeted updates to:
    • command-step dry-run fallback preview notes,
    • dry-run preview emission when run status is not completed,
    • WorkflowEngine.execute() dry-run docstring semantics.

• What changed

  • No repository code changes were made in this branch, to avoid introducing unrelated feature work.
  • Confirmed the current branch does not include the dry-run implementation referenced by the review thread, so the comments cannot be applied surgically here.
  • Requested direction to either:
    • rebase/fetch and patch PR feat(workflows): add --dry-run flag to specify workflow run #2704 head (feat/2661-dry-run), or
    • implement dry-run feature surface directly in this branch (larger scope).

• Reference (missing target surface in current branch)

# Current WorkflowEngine.execute signature in this branch
def execute(self, definition, inputs=None, run_id=None) -> RunState:
    ...