Function decline

src/codegraph/helper-extract.ts:237–237

(reason: string)

 */
export function proposeParameterizedHelper(members: FunctionUnit[], helperName = 'extractedHelper'): ParamProposal {
  const decline = (reason: string): ParamProposal => ({ ok: false, reason, helperName, params: [], sketch: '', calls: [] });
  if (members.length < 2) return decline('need at least two functions');

  // Neutralize each function's own name, and strip comments BEFORE aligning: two bodies that