diff --git a/index.html b/index.html
index 8d36c6b..c78a522 100644
--- a/index.html
+++ b/index.html
@@ -292,13 +292,13 @@ <h5 style="margin-top:1.25rem;">Registered Robots</h5>
 function checkServer(){var d=document.getElementById('statusDot'),t=document.getElementById('statusText');fetch(B+'/health_check').then(function(r){if(r.ok){d.className='status-dot online';t.textContent='Server Online';}else{d.className='status-dot offline';t.textContent='Unhealthy';}}).catch(function(){d.className='status-dot offline';t.textContent='Server Offline';});}
 checkServer();
 function toggle(h){var b=h.nextElementSibling,t=h.querySelector('.endpoint-toggle');b.classList.toggle('open');t.style.transform=b.classList.contains('open')?'rotate(180deg)':'';}
-function showResp(id,s,d,m){var b=document.getElementById(id),ok=s>=200&&s<300;b.className='response-box visible';b.innerHTML='<div class="response-header '+(ok?'success':'error')+'"><span class="status-code">'+s+'</span><span>'+(ok?'Success':'Error')+'</span><span class="response-time">'+m+'ms</span></div><div class="response-body-output">'+(typeof d==='string'?d:JSON.stringify(d,null,2))+'</div>';}
+function showResp(id,s,d,m){var b=document.getElementById(id),ok=s>=200&&s<300;b.className='response-box visible';b.innerHTML='<div class="response-header '+(ok?'success':'error')+'"><span class="status-code"></span><span>'+(ok?'Success':'Error')+'</span><span class="response-time"></span></div><div class="response-body-output"></div>';b.querySelector('.status-code').textContent=s;b.querySelector('.response-time').textContent=m+'ms';b.querySelector('.response-body-output').textContent=(typeof d==='string'?d:JSON.stringify(d,null,2));}
 function showLoad(id){var b=document.getElementById(id);b.className='response-box visible';b.innerHTML='<div class="response-header loading"><span>Sending...</span></div>';}
-function showErr(id,m){var b=document.getElementById(id);b.className='response-box visible';b.innerHTML='<div class="response-header error"><span>Error</span></div><div class="response-body-output">'+m+'</div>';}
+function showErr(id,m){var b=document.getElementById(id);b.className='response-box visible';b.innerHTML='<div class="response-header error"><span>Error</span></div><div class="response-body-output"></div>';b.querySelector('.response-body-output').textContent=m;}
 function api(method,path,body){var s=performance.now(),o={method:method,headers:{'Content-Type':'application/json'}};if(body)o.body=JSON.stringify(body);return fetch(B+path,o).then(function(r){var m=Math.round(performance.now()-s);return r.json().then(function(d){return{status:r.status,data:d,ms:m};}).catch(function(){return r.text().then(function(t){return{status:r.status,data:t,ms:m};});});});}
 function unlock(){['lock-post-sensor','lock-get-sensor','lock-filter-sensor','lock-stats'].forEach(function(id){document.getElementById(id).classList.add('unlocked');});}
 function lock(){['lock-post-sensor','lock-get-sensor','lock-filter-sensor','lock-stats'].forEach(function(id){document.getElementById(id).classList.remove('unlocked');});}
-function updateRL(){var el=document.getElementById('registeredRobots');if(!R.length){el.innerHTML='<span style="font-size:.8rem;color:var(--text-dim)">아직 등록된 로봇이 없습니다.</span>';return;}el.innerHTML=R.map(function(r){return'<div class="robot-chip"><span class="chip-id">#'+r.id+'</span><span class="chip-name">'+r.name+'</span></div>';}).join('');}
+function updateRL(){var el=document.getElementById('registeredRobots');if(!R.length){el.innerHTML='<span style="font-size:.8rem;color:var(--text-dim)">아직 등록된 로봇이 없습니다.</span>';return;}el.innerHTML='';R.forEach(function(r){var chip=document.createElement('div');chip.className='robot-chip';var idSpan=document.createElement('span');idSpan.className='chip-id';idSpan.textContent='#'+r.id;var nameSpan=document.createElement('span');nameSpan.className='chip-name';nameSpan.textContent=r.name;chip.appendChild(idSpan);chip.appendChild(nameSpan);el.appendChild(chip);});}
 var MODELS=['Warehouse-Bot-v2','Patrol-Bot-X1','Cargo-Mover-3K','Scout-Mini','HeavyLift-900','SpeedRunner-S','Inspector-Pro','CleanBot-Z','Picker-Alpha','Navigator-V5'];
 var autoTimer=null,autoSentN=0,autoErrN=0,autoTotalMs=0;