fix(dashboard): prevent column reset on evolve-agent reload

- Remove localStorage wipe before mergeCachedResults() — was deleting
  cached research results when Evolve button triggered load()
- mergeCachedResults(): only fill gaps (existing===undefined||0), never
  override scores from DB — prevents stale cache from shadowing live data

agent-evolution/real-fit.html

@@ -154,10 +154,6 @@ async function load(){
   const eRes=await fetch('data/evolution.json');
   evoData=await eRes.json();
     reportData.generated = reportData.generated || new Date().toISOString();
-    // Больше не смешиваем API-данные с локальным кэшем — иначе stale cached scores перекрывают живые данные из БД
-    if (reportData.source && reportData.source.includes('db')) {
-      try { localStorage.removeItem('__researchResults'); } catch(e) {}
-    }
     $('updated').textContent=new Date(reportData.generated).toLocaleString('ru-RU');
 
   const agents=Object.values(reportData.agents).filter(a=>Object.values(a.evaluations).some(s=>s>0));
@@ -304,7 +300,11 @@ function mergeCachedResults(){
       }
       for(const r of (rec.models||[])){
         const shortM=modelShort(r.model);
-        reportData.agents[agent].evaluations[shortM]=r.score;
+        // Only fill gaps — never override existing DB scores
+        const existing=reportData.agents[agent].evaluations[shortM];
+        if(existing===undefined||existing===0){
+          reportData.agents[agent].evaluations[shortM]=r.score;
+        }
         if(r.score>reportData.agents[agent].best_score){
           reportData.agents[agent].best_model=shortM;
           reportData.agents[agent].best_score=r.score;