CodeBench: kierroskohtainen output-dir + tiivistetty Go golden example

- runPipeline saa round-parametrin, dir: model__scenario__r1, __r2 jne.
- todo-go.md testit 6→4 (poistettu list+update toisteiset), 466→370 riviä

kipina-codebench/benchmark.mjs

@@ -308,7 +308,7 @@ function starsForScore(score) {
 }
 
 // === Pipeline: yhdelle mallille ja skenaariolle ===
-async function runPipeline(model, scenario) {
+async function runPipeline(model, scenario, round = 1) {
     const result = {
         model, scenario: scenario.id,
         reqOk: false, specOk: false, specEntities: 0,
@@ -321,7 +321,8 @@ async function runPipeline(model, scenario) {
     };
     const timings = [];
     const { system: CODE_SYSTEM, promptName, profile } = getCodePromptForModel(model);
-    const dir = `${OUTPUT_DIR}/${model.replace(/[/:]/g, '_')}__${scenario.id}`;
+    const roundSuffix = ROUNDS > 1 ? `__r${round}` : '';
+    const dir = `${OUTPUT_DIR}/${model.replace(/[/:]/g, '_')}__${scenario.id}${roundSuffix}`;
     mkdirSync(dir, { recursive: true });
 
     try {
@@ -651,7 +652,7 @@ async function main() {
         for (const scenario of scenarios) {
             const roundLabel = ROUNDS > 1 ? ` [${round}/${ROUNDS}]` : '';
             console.log(`\n━━━ ${model} × ${scenario.id}${roundLabel} ━━━`);
-            const r = await runPipeline(model, scenario);
+            const r = await runPipeline(model, scenario, round);
             if (ROUNDS > 1) r.round = round;
             results.push(r);