fix: surface OTel and sentinel visibility gaps

scripts/src/hwlab-node-web-observe-collect.ts

@@ -166,6 +166,26 @@ function samplesForTrace(items,traceId,maxSeq=null){
 function latestSampleForTrace(items,traceId,maxSeq=null){
   return samplesForTrace(items,traceId,maxSeq).slice(-1)[0]||null;
 }
+function sampleHasTerminalForTrace(sample,traceId){
+  if(!sample) return false;
+  const status=statusFor([sample],traceId);
+  if(terminalFinalStatus(status)) return true;
+  const final=finalResponseFor([sample],traceId);
+  if(final&&!final.empty) return true;
+  return traceEntries([sample],traceId).some((entry)=>terminalText(entry.text)||terminalFinalStatus(entry.item?.status));
+}
+function bestTraceFrameSample(traceId,maxSeq=null){
+  if(!traceId) return null;
+  const matched=samples.filter((sample)=>traceIdsFromSamples([sample]).includes(traceId));
+  if(matched.length===0) return null;
+  const terminal=matched.filter((sample)=>sampleHasTerminalForTrace(sample,traceId)).slice(-1)[0];
+  if(terminal) return terminal;
+  if(maxSeq!==null){
+    const before=matched.filter((sample)=>{const seq=numOrNull(sample.seq); return seq===null||seq<=maxSeq;}).slice(-1)[0];
+    if(before) return before;
+  }
+  return matched.slice(-1)[0]||null;
+}
 function traceEntries(items,traceId){
   const entries=[];
   for(const sample of items){
@@ -345,9 +365,9 @@ function selectSample(rows){
   if(requestedSampleSeq!==null){const exact=samples.find((sample)=>Number(sample.seq)===requestedSampleSeq); if(exact)return exact;}
   if(requestedTimestamp){const target=tsMs(requestedTimestamp); if(target!==null){const before=samples.filter((sample)=>{const ms=tsMs(sample.ts); return ms!==null&&ms<=target}).slice(-1)[0]; if(before)return before;}}
   const requestedRow=requestedTurn!==null?rows[requestedTurn-1]:null;
-  if(requestedRow?.traceId){const byTrace=latestSampleForTrace(samples,requestedRow.traceId,numOrNull(requestedRow.lastSeq)); if(byTrace)return byTrace;}
+  if(requestedRow?.traceId){const byTrace=bestTraceFrameSample(requestedRow.traceId,numOrNull(requestedRow.lastSeq)); if(byTrace)return byTrace;}
   if(requestedRow&&requestedRow.lastSeq!==null&&requestedRow.lastSeq!==undefined){const byTurn=samples.find((sample)=>Number(sample.seq)===Number(requestedRow.lastSeq)); if(byTurn)return byTurn;}
-  if(requestedTraceId){const byTrace=samples.filter((sample)=>traceIdsFromSamples([sample]).includes(requestedTraceId)).slice(-1)[0]; if(byTrace)return byTrace;}
+  if(requestedTraceId){const byTrace=bestTraceFrameSample(requestedTraceId); if(byTrace)return byTrace;}
   return samples[samples.length-1]||null;
 }
 function renderTraceFrame(sample,rows){
@@ -365,9 +385,11 @@ function renderTraceFrame(sample,rows){
   const terminalProjectionVisible=status==='completed'&&finalResponse&&!finalResponse.empty&&turns.some((turn)=>String(turn?.status||'').toLowerCase()==='completed'||/completed|轮次完成|final response/iu.test(textOf(turn)));
   if(rowLines.length===0&&terminalProjectionVisible) rowLines.push('(trace rows collapsed; terminal turn and Final Response are visible)');
   const missingRows=rowLines.length===0;
+  const laterTerminalSample=traceId?samples.filter((candidate)=>Number(candidate.seq??0)>Number(sample.seq??0)&&traceIdsFromSamples([candidate]).includes(traceId)&&sampleHasTerminalForTrace(candidate,traceId)).slice(-1)[0]||null:null;
+  const sampleNotice=laterTerminalSample?['TRACE SAMPLE NOTICE','current sample is non-terminal but a later terminal sample exists: seq='+(laterTerminalSample.seq??'-')+' ts='+(laterTerminalSample.ts||'-')+'; rerun with --sample-seq '+(laterTerminalSample.seq??'<seq>')+' or omit explicit sample selection.']:[];
   const bodyRows=missingRows?['(无 trace rows；这是 blocker，不能当业务通过证据)',...traceFrameDiagnosticLines(sample,traceId,traceRows)]:rowLines;
-  const rendered=['Code Agent 耗时 '+(elapsed>=0?fmtDuration(elapsed):'-')+'               最近 '+(recent>=0?String(recent)+' 秒前':'-')+' （'+status+'）','=======================================================','sample seq='+(sample.seq??'-')+' ts='+(sample.ts||'-')+' traceId='+(traceId||'-')+' routeSession='+(sample.routeSessionId||'-')+' activeSession='+(sample.activeSessionId||'-'),...bodyRows,'==========================','Final Response',finalResponse.preview||'(空内容)'].join('\\n');
-  return {ok:!missingRows,renderedText:rendered,blocker:missingRows?'trace-rows-missing':null,sampleSeq:sample.seq??null,traceId,finalResponse,traceDiagnostic:missingRows?{pageRole:sample.pageRole||null,pageId:sample.pageId||null,traceRows:Array.isArray(sample.traceRows)?sample.traceRows.length:0,turns:Array.isArray(sample.turns)?sample.turns.length:0,messages:Array.isArray(sample.messages)?sample.messages.length:0,sampleTraceIds:traceIdsFromSamples([sample]).slice(0,12)}:null,valuesRedacted:true};
+  const rendered=['Code Agent 耗时 '+(elapsed>=0?fmtDuration(elapsed):'-')+'               最近 '+(recent>=0?String(recent)+' 秒前':'-')+' （'+status+'）','=======================================================','sample seq='+(sample.seq??'-')+' ts='+(sample.ts||'-')+' traceId='+(traceId||'-')+' routeSession='+(sample.routeSessionId||'-')+' activeSession='+(sample.activeSessionId||'-'),...sampleNotice,...bodyRows,'==========================','Final Response',finalResponse.preview||'(空内容)'].join('\\n');
+  return {ok:!missingRows,renderedText:rendered,blocker:missingRows?'trace-rows-missing':null,sampleSeq:sample.seq??null,traceId,finalResponse,laterTerminalSample:laterTerminalSample?{seq:laterTerminalSample.seq??null,ts:laterTerminalSample.ts??null}:null,traceDiagnostic:missingRows?{pageRole:sample.pageRole||null,pageId:sample.pageId||null,traceRows:Array.isArray(sample.traceRows)?sample.traceRows.length:0,turns:Array.isArray(sample.turns)?sample.turns.length:0,messages:Array.isArray(sample.messages)?sample.messages.length:0,sampleTraceIds:traceIdsFromSamples([sample]).slice(0,12)}:null,valuesRedacted:true};
 }
 function firstPresent(values){
   for(const value of values){