Remove strategy label from chart series names (only show agent and model)

src/components/CompareChartE.vue

@@ -245,7 +245,7 @@ export default defineComponent({
         // NEW: convert to % mode if requested
         if (this.mode === 'pct') points = toPct(points)
 
-        const name = `${agent} · ${sel.model} · ${cfg.label}`
+        const name = `${agent} · ${this.formatModelName(sel.model)}`
         legend.push(name)
         series.push({
           name,