possible fix

index.html

@@ -842,18 +842,24 @@ async function embedText(t){const o=await ST.embedder(t,{pooling:'mean',normaliz
 async function rerankRes(q,res){
   if(!ST.reranker||!ST.nodeEnabled.rerank)return[];
   try{
-    const pairs=res.map(r=>[q,r.text]);
-    const outputs=await ST.reranker(pairs);
-    const scores=outputs.map((out,i)=>{
-      let score=0;
-      if(typeof out==='number'){score=out}
-      else if(Array.isArray(out)&&out.length>0){score=out[0].score??0}
-      else if(out&&typeof out.score==='number'){score=out.score}
-      else{score=res[i].score}
-      if(score<0||score>1){score=1/(1+Math.exp(-score))}
-      return score;
+    const outputs=await ST.reranker(res.map(r=>q+' </s> '+r.text));
+    const scores=outputs.map(out=>{
+      let s=0;
+      if(typeof out==='number')s=out;
+      else if(Array.isArray(out)&&out.length>0)s=out[0]?.score??(typeof out[0]==='number'?out[0]:0);
+      else if(out&&typeof out.score==='number')s=out.score;
+      if(s<0||s>1)s=1/(1+Math.exp(-s));
+      return s;
     });
-    return res.map((r,i)=>({...r,rerankScore:scores[i]})).sort((a,b)=>b.rerankScore-a.rerankScore).slice(0,CFG.topKRerank);
+    const mn=Math.min(...scores),mx=Math.max(...scores);
+    let norm;
+    if(mx>mn)norm=scores.map(s=>(s-mn)/(mx-mn));
+    else{
+      const orig=res.map(r=>r.score);
+      const om=Math.min(...orig),ox=Math.max(...orig);
+      norm=ox>om?orig.map(s=>(s-om)/(ox-om)):orig.map((_,i)=>(orig.length-i-1)/(orig.length-1));
+    }
+    return res.map((r,i)=>({...r,rerankScore:norm[i]})).sort((a,b)=>b.rerankScore-a.rerankScore).slice(0,CFG.topKRerank);
   }catch(e){console.warn('Rerank err:',e);return[]}
 }
 async function genAnswer(q,ctx){
@@ -912,7 +918,7 @@ function renderRet(items,lid,rr=false){
   items.forEach((item,i)=>{
     const d=document.createElement('div');d.className=`ret-item ${rr?'sel':''}`;
     const sc=rr?(item.rerankScore??item.score):item.score;
-    d.innerHTML=`<div class="ret-rank">#${i+1}</div><div class="ret-text">${escH(item.text)}</div><div class="ret-foot"><span class="ret-meta">${item.source||'?'} · ${item.category||'?'}</span><div class="score-bar"><div class="score-fill" style="width:0"></div></div><span class="score-pct">${(sc*100).toFixed(1)}%</span></div>`;
+    d.innerHTML=`<div class="ret-rank">#${i+1}</div><div class="ret-text">${escH(item.text)}</div><div class="ret-foot"><span class="ret-meta">${item.source||'?'} · ${item.category||'?'}</span><div class="score-bar"><div class="score-fill" style="width:0"></div></div><span class="score-pct">${(Math.abs(sc)*100).toFixed(1)}%</span></div>`;
     el.appendChild(d);
     setTimeout(()=>{d.classList.add(rr?'sel':'lit');d.querySelector('.score-fill').style.width=Math.min(100,Math.abs(sc)*100)+'%'},i*80);
   });