diff --git a/index.html b/index.html
index 9dcfaf3..771707d 100644
--- a/index.html
+++ b/index.html
@@ -9,7 +9,6 @@
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/github-markdown-css@5.5.1/github-markdown-light.min.css"/>
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.9.0/build/styles/github.min.css"/>
 <style>
-:root{--safe-bottom:env(safe-area-inset-bottom)}::-webkit-scrollbar{height:8px;width:8px}::-webkit-scrollbar-thumb{background:#e5e7eb;border-radius:999px}.no-scrollbar::-webkit-scrollbar{display:none}.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
 .markdown-body{font-size:14px;line-height:1.6}.markdown-body pre{overflow:auto}
 .msg-bubble{overflow-x:auto}
 .copy-btn{position:absolute;top:.5rem;right:.5rem;background:#0f172a;color:#fff;border-radius:.5rem;padding:.25rem .5rem;font-size:12px;opacity:.85}
@@ -102,7 +101,7 @@
           <div><label class="block text-gray-700 font-medium mb-1">System Prompt</label><textarea id="set_system_prompt" rows="8" class="w-full rounded-xl border border-gray-300 px-3 py-2 focus:outline-none focus:ring-2 focus:ring-black/20" placeholder="Enter a system prompt to guide the sune"></textarea><p class="mt-1 text-xs text-gray-500">Saved per sune.</p></div>
         </div>
         <div id="panelScript" class="p-4 space-y-3 hidden">
-          <div><pre id="scriptEditor" class="w-full h-[50vh] p-3 rounded-xl border border-gray-300 bg-white overflow-auto font-mono text-[12px] leading-5" contenteditable="plaintext-only" spellcheck="false"></pre><p class="mt-1 text-xs text-gray-500">Sunes can function call exported JS functions.</p></div>
+          <div><pre id="scriptEditor" class="w-full h-[50vh] p-3 rounded-xl border border-gray-300 bg-white overflow-auto font-mono text-[12px] leading-5" contenteditable="plaintext-only" spellcheck="false"></pre><p class="mt-1 text-xs text-gray-500">Sunes can function call exported JS functions. (WIP)</p></div>
         </div>
         <div class="flex items-center justify-between gap-2 px-4 py-3 border-t">
           <button type="button" id="deleteSuneBtn" class="inline-flex items-center gap-2 px-3 py-2 rounded-xl border border-red-200 text-red-700 hover:bg-red-50"><svg viewBox="0 0 24 24" class="h-4 w-4" fill="none" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M3 6h18M8 6v12a2 2 0 0 0 2 2h4a2 2 0 0 0 2-2V6m-9 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg><span>Delete sune</span></button>
@@ -122,6 +121,9 @@ const DEFAULT_MODEL='openai/gpt-5-chat',DEFAULT_API_KEY=''
 const el=Object.fromEntries(['chat','messages','composer','input','sendBtn','settingsBtnTop','settingsModal','settingsForm','closeSettings','cancelSettings','tabModel','tabPrompt','tabScript','panelModel','panelPrompt','panelScript','set_model','set_temperature','set_top_p','set_top_k','set_frequency_penalty','set_presence_penalty','set_repetition_penalty','set_min_p','set_top_a','set_reasoning_effort','set_system_prompt','deleteSuneBtn','sidebar','sidebarOverlay','sidebarBtn','suneList','newSuneBtn','userMenuBtn','userMenu','apiKeyOption','sunesImportOption','sunesExportOption','threadsImportOption','threadsExportOption','importInput','historyBtn','historyPanel','historyOverlay','historyList','closeHistory','historyMenu','suneMenu','footer','attachBtn','attachBadge','fileInput','scriptEditor'].map(id=>[id,document.getElementById(id)]))
 const icons=()=>window.lucide&&lucide.createIcons()
 const clamp=(v,min,max)=>Math.max(min,Math.min(max,v)),num=(v,d)=>v==null||v===''||isNaN(+v)?d:+v,int=(v,d)=>v==null||v===''||isNaN(parseInt(v))?d:parseInt(v),gid=()=>Math.random().toString(36).slice(2,9),esc=s=>String(s).replace(/[&<>'"`]/g,c=>({"&":"&amp;","<":"&lt;",">":"&gt;","\"":"&quot;","'":"&#39;","`":"&#96;"}[c]))
+const fmtSize=b=>{const u=['B','KB','MB','GB','TB'];let i=0,x=b;while(x>=1024&&i<u.length-1){x/=1024;i++}return (x>=10?Math.round(x):Math.round(x*10)/10)+' '+u[i]}
+const asDataURL=f=>new Promise(r=>{const fr=new FileReader();fr.onload=()=>r(String(fr.result||''));fr.readAsDataURL(f)})
+const b64=x=>x.split(',')[1]||''
 const globalStore={get apiKey(){return localStorage.getItem('openrouter_api_key')||DEFAULT_API_KEY||''},set apiKey(v){localStorage.setItem('openrouter_api_key',v||'')}}
 const su={key:'sunes_v1',activeKey:'active_sune_id',load(){try{return JSON.parse(localStorage.getItem(this.key)||'[]')}catch{return[]}},save(list){localStorage.setItem(this.key,JSON.stringify(list||[]))},getActiveId(){return localStorage.getItem(this.activeKey)||null},setActiveId(id){localStorage.setItem(this.activeKey,id||'')}}
 const defaultSettings={model:DEFAULT_MODEL,temperature:1,top_p:0.97,top_k:0,frequency_penalty:0,presence_penalty:0,repetition_penalty:1,min_p:0,top_a:0,reasoning_effort:'default',system_prompt:'',script:''}
@@ -140,14 +142,13 @@ const md=window.markdownit({html:false,linkify:true,typographer:true,breaks:true
 const getSuneLabel=m=>{const name=(m&&m.sune_name)||getActiveSune().name,modelShort=getModelShort(m&&m.model);return `${name} · ${modelShort}`}
 function msgRow(m){const role=typeof m==='string'?m:(m&&m.role)||'assistant';const meta=typeof m==='string'?{}:m||{};const row=document.createElement('div');row.className='flex flex-col gap-2';const head=document.createElement('div');head.className='flex items-center gap-2 px-4';const avatar=document.createElement('div');if(role==='user'){avatar.className='bg-gray-900 text-white msg-avatar shrink-0 h-7 w-7 rounded-full flex items-center justify-center';avatar.textContent='🧑'}else{if(meta&&meta.avatar){avatar.className='msg-avatar shrink-0 h-7 w-7 rounded-full overflow-hidden';const img=document.createElement('img');img.src=meta.avatar;img.className='h-full w-full object-cover';avatar.appendChild(img)}else{avatar.className='bg-gray-200 text-gray-900 msg-avatar shrink-0 h-7 w-7 rounded-full flex items-center justify-center';avatar.textContent='✺'}}const name=document.createElement('div');name.className='text-xs font-medium text-gray-500';name.textContent=role==='user'?'You':getSuneLabel(meta);head.appendChild(avatar);head.appendChild(name);const bubble=document.createElement('div');bubble.className=(role==='user'?'bg-gray-50 border border-gray-200':'bg-gray-100')+' msg-bubble markdown-body rounded-none px-4 py-3 w-full';row.appendChild(head);row.appendChild(bubble);el.messages.appendChild(row);queueMicrotask(()=>el.chat.scrollTo({top:el.chat.scrollHeight,behavior:'smooth'}));return bubble}
 function renderMarkdown(node,text,opt={enhance:true,highlight:true}){node.innerHTML=md.render(text);if(opt.enhance)enhanceCodeBlocks(node,opt.highlight)}
-function addMessage(m,track=true){const bubble=msgRow(m);renderMarkdown(bubble,m.content);if(track)state.messages.push(m);return bubble}
+function addMessage(m,track=true){m.id=m.id||gid();const bubble=msgRow(m);bubble.dataset.mid=m.id;renderMarkdown(bubble,m.content);if(track)state.messages.push(m);return bubble}
 const addSuneBubbleStreaming=meta=>msgRow(Object.assign({role:'assistant'},meta))
 const clearChat=()=>{state.messages=[];el.messages.innerHTML='';state.attachments=[];updateAttachBadge();el.fileInput.value=''}
 const payloadWithSampling=b=>Object.assign({},b,{temperature:store.temperature,top_p:store.top_p,top_k:store.top_k,frequency_penalty:store.frequency_penalty,presence_penalty:store.presence_penalty,repetition_penalty:store.repetition_penalty,min_p:store.min_p,top_a:store.top_a})
 function setBtnStop(){const b=el.sendBtn;b.dataset.mode='stop';b.type='button';b.setAttribute('aria-label','Stop');b.innerHTML='<i data-lucide="square" class="h-5 w-5"></i>';icons();b.onclick=()=>{state.abortRequested=true;state.controller?.abort?.()}}
 function setBtnSend(){const b=el.sendBtn;b.dataset.mode='send';b.type='submit';b.setAttribute('aria-label','Send');b.innerHTML='<i data-lucide="sparkles" class="h-5 w-5"></i>';icons();b.onclick=null}
-async function askOpenRouterStreaming(onDelta){const apiKey=store.apiKey,model=store.model;if(!apiKey){const text=localDemoReply(state.messages[state.messages.length-1]?.content||'');onDelta(text,true);return {ok:true,text}}try{state.controller=new AbortController();const msgs=[];if(store.system_prompt)msgs.push({role:'system',content:store.system_prompt});msgs.push(...state.messages.filter(m=>m.role!=='system').map(m=>({role:m.role,content:m.contentParts||m.content})));
-let body=payloadWithSampling({model,messages:msgs,stream:true});const re=store.reasoning_effort; if(re&&re!=='default')body.reasoning={effort:re};const res=await fetch('https://openrouter.ai/api/v1/chat/completions',{method:'POST',headers:{'Content-Type':'application/json','Authorization':'Bearer '+apiKey},body:JSON.stringify(body),signal:state.controller.signal});if(!res.ok){const errText=await res.text().catch(()=> '');throw new Error(errText||('HTTP '+res.status))}const reader=res.body.getReader(),decoder=new TextDecoder('utf-8');let buffer='',full='',finished=false;const doneOnce=()=>{if(finished)return;finished=true;onDelta('',true)};while(true){const {value,done}=await reader.read();if(done)break;buffer+=decoder.decode(value,{stream:true});let idx;while((idx=buffer.indexOf('\n\n'))!==-1){const chunk=buffer.slice(0,idx).trim();buffer=buffer.slice(idx+2);if(!chunk)continue;if(chunk.startsWith('data:')){const data=chunk.slice(5).trim();if(data==='[DONE]'){doneOnce();continue}try{const json=JSON.parse(data);const delta=json.choices?.[0]?.delta?.content??'';if(delta){full+=delta;onDelta(delta,false)}const finish=json.choices?.[0]?.finish_reason;if(finish)doneOnce()}catch{}}}}doneOnce();return {ok:true,text:full}}catch(e){const msg=String(e?.message||e),aborted=e?.name==='AbortError'||/abort/i.test(msg)||state.controller?.signal?.aborted||state.abortRequested;if(aborted){onDelta('',true);return {ok:false,text:'',aborted:true}}let hint='Request failed.';if(/401|unauthorized/i.test(msg))hint='Unauthorized (check API key).';else if(/429|rate/i.test(msg))hint='Rate limited (slow down or upgrade).';else if(/access|forbidden|403/i.test(msg))hint='Forbidden (model or key scope).';const fallback='\n\n'+hint;onDelta(fallback,true);return {ok:false,text:fallback}}finally{state.controller=null;state.abortRequested=false}}
+async function askOpenRouterStreaming(onDelta){const apiKey=store.apiKey,model=store.model;if(!apiKey){const text=localDemoReply(state.messages[state.messages.length-1]?.content||'');onDelta(text,true);return {ok:true,text}}try{state.controller=new AbortController();const msgs=[];if(store.system_prompt)msgs.push({role:'system',content:store.system_prompt});msgs.push(...state.messages.filter(m=>m.role!=='system').map(m=>({role:m.role,content:m.contentParts||m.content})));let body=payloadWithSampling({model,messages:msgs,stream:true});const re=store.reasoning_effort; if(re&&re!=='default')body.reasoning={effort:re};const res=await fetch('https://openrouter.ai/api/v1/chat/completions',{method:'POST',headers:{'Content-Type':'application/json','Authorization':'Bearer '+apiKey},body:JSON.stringify(body),signal:state.controller.signal});if(!res.ok){const errText=await res.text().catch(()=> '');throw new Error(errText||('HTTP '+res.status))}const reader=res.body.getReader(),decoder=new TextDecoder('utf-8');let buffer='',full='',finished=false;const doneOnce=()=>{if(finished)return;finished=true;onDelta('',true)};while(true){const {value,done}=await reader.read();if(done)break;buffer+=decoder.decode(value,{stream:true});let idx;while((idx=buffer.indexOf('\n\n'))!==-1){const chunk=buffer.slice(0,idx).trim();buffer=buffer.slice(idx+2);if(!chunk)continue;if(chunk.startsWith('data:')){const data=chunk.slice(5).trim();if(data==='[DONE]'){doneOnce();continue}try{const json=JSON.parse(data);const delta=json.choices?.[0]?.delta?.content??'';if(delta){full+=delta;onDelta(delta,false)}const finish=json.choices?.[0]?.finish_reason;if(finish)doneOnce()}catch{}}}}doneOnce();return {ok:true,text:full}}catch(e){const msg=String(e?.message||e),aborted=e?.name==='AbortError'||/abort/i.test(msg)||state.controller?.signal?.aborted||state.abortRequested;if(aborted){onDelta('',true);return {ok:false,text:'',aborted:true}}let hint='Request failed.';if(/401|unauthorized/i.test(msg))hint='Unauthorized (check API key).';else if(/429|rate/i.test(msg))hint='Rate limited (slow down or upgrade).';else if(/access|forbidden|403/i.test(msg))hint='Forbidden (model or key scope).';const fallback='\n\n'+hint;onDelta(fallback,true);return {ok:false,text:fallback}}finally{state.controller=null;state.abortRequested=false}}
 function localDemoReply(){return 'Tip: open the sidebar → Account & Backup to set your OpenRouter API key.'}
 let threads=[];const titleFrom=t=>(t||'').replace(/\s+/g,' ').trim().slice(0,60)||'Untitled'
 const TKEY='threads_v1',tload=()=>localforage.getItem(TKEY).then(v=>Array.isArray(v)?v:[]),tsave=v=>localforage.setItem(TKEY,v)
@@ -159,18 +160,26 @@ let menuThreadId=null;const hideHistoryMenu=()=>{el.historyMenu.classList.add('h
 function showHistoryMenu(btn,id){menuThreadId=id;const r=btn.getBoundingClientRect();el.historyMenu.style.top=(r.bottom+4)+'px';el.historyMenu.style.left=Math.min(window.innerWidth-220,r.right-200)+'px';el.historyMenu.classList.remove('hidden');icons()}
 let menuSuneId=null;const hideSuneMenu=()=>{el.suneMenu.classList.add('hidden');menuSuneId=null}
 function showSuneMenu(btn,id){menuSuneId=id;const r=btn.getBoundingClientRect();el.suneMenu.style.top=(r.bottom+4)+'px';el.suneMenu.style.left=Math.min(window.innerWidth-220,r.right-200)+'px';el.suneMenu.classList.remove('hidden');icons()}
-el.historyList.addEventListener('click',async e=>{const openBtn=e.target.closest('[data-open-thread]'),menuBtn=e.target.closest('[data-thread-menu]');if(openBtn){const id=openBtn.getAttribute('data-open-thread'),th=threads.find(t=>t.id===id);if(!th)return;state.currentThreadId=id;clearChat();state.messages=Array.isArray(th.messages)?[...th.messages]:[];for(const m of state.messages){const b=msgRow(m);renderMarkdown(b,m.content)}queueMicrotask(()=>el.chat.scrollTo({top:el.chat.scrollHeight,behavior:'smooth'}));el.historyPanel.classList.add('translate-x-full');el.historyOverlay.classList.add('hidden');hideHistoryMenu();return}if(menuBtn){e.stopPropagation();showHistoryMenu(menuBtn,menuBtn.getAttribute('[data-thread-menu]')?menuBtn.getAttribute('[data-thread-menu]'):menuBtn.getAttribute('data-thread-menu'))}})
+el.historyList.addEventListener('click',async e=>{const openBtn=e.target.closest('[data-open-thread]'),menuBtn=e.target.closest('[data-thread-menu]');if(openBtn){const id=openBtn.getAttribute('data-open-thread'),th=threads.find(t=>t.id===id);if(!th)return;state.currentThreadId=id;clearChat();state.messages=Array.isArray(th.messages)?[...th.messages]:[];for(const m of state.messages){const b=msgRow(m);b.dataset.mid=m.id||'';renderMarkdown(b,m.content)}queueMicrotask(()=>el.chat.scrollTo({top:el.chat.scrollHeight,behavior:'smooth'}));el.historyPanel.classList.add('translate-x-full');el.historyOverlay.classList.add('hidden');hideHistoryMenu();return}if(menuBtn){e.stopPropagation();showHistoryMenu(menuBtn,menuBtn.getAttribute('[data-thread-menu]')?menuBtn.getAttribute('[data-thread-menu]'):menuBtn.getAttribute('data-thread-menu'))}})
 el.historyMenu.addEventListener('click',async e=>{const act=e.target.closest('[data-action]')?.getAttribute('data-action');if(!act||!menuThreadId)return;const th=threads.find(t=>t.id===menuThreadId);if(!th)return;if(act==='pin'){th.pinned=!th.pinned}else if(act==='rename'){const nv=prompt('Rename to:',th.title);if(nv!=null){th.title=titleFrom(nv);th.updatedAt=Date.now()}}else if(act==='delete'){if(confirm('Delete this chat?')){threads=threads.filter(x=>x.id!==th.id);if(state.currentThreadId===th.id){state.currentThreadId=null;clearChat()}}}else if(act==='count_tokens'){const msgs=Array.isArray(th.messages)?th.messages:[];let totalChars=0;for(const m of msgs){if(!m||!m.role||m.role==='system')continue;totalChars+=String(m.content||'').length}const tokens=Math.max(0,Math.ceil(totalChars/4));const k=tokens>=1000?Math.round(tokens/1000)+'k':String(tokens);alert(tokens+' tokens ('+k+')')}hideHistoryMenu();await tsave(threads);renderHistory()})
 el.suneList.addEventListener('click',e=>{const menuBtn=e.target.closest('[data-sune-menu]');if(menuBtn){e.stopPropagation();showSuneMenu(menuBtn,menuBtn.getAttribute('[data-sune-menu]')?menuBtn.getAttribute('[data-sune-menu]'):menuBtn.getAttribute('data-sune-menu'));return}const btn=e.target.closest('[data-sune-id]');if(!btn)return;const id=btn.getAttribute('data-sune-id');if(id){su.setActiveId(id);renderSidebar();reflectActiveSune();state.currentThreadId=null;clearChat();document.getElementById('sidebar').classList.add('-translate-x-full');document.getElementById('sidebarOverlay').classList.add('hidden')}})
 el.suneMenu.addEventListener('click',e=>{const act=e.target.closest('[data-action]')?.getAttribute('data-action');if(!act||!menuSuneId)return;const s=sunes.find(x=>x.id===menuSuneId);if(!s)return;if(act==='pin')s.pinned=!s.pinned;else if(act==='rename'){const nv=prompt('Rename sune to:',s.name);if(nv!=null)s.name=nv.trim()||s.name}else if(act==='pfp'){const url=prompt('Image URL:',s.avatar||'');if(url!==null)s.avatar=url.trim()}s.updatedAt=Date.now();su.save(sunes);hideSuneMenu();renderSidebar();reflectActiveSune()})
 function updateAttachBadge(){const n=state.attachments.length;el.attachBadge.textContent=String(n);el.attachBadge.classList.toggle('hidden',n===0)}
-async function fileToPart(file){const name=file.name||'file',type=(file.type||'').toLowerCase();const asDataURL=f=>new Promise(r=>{const fr=new FileReader();fr.onload=()=>r(String(fr.result||''));fr.readAsDataURL(f)});if(type.startsWith('image/')||/\.(png|jpe?g|webp|gif)$/i.test(name)){const url=await asDataURL(file);return {label:name,part:{type:'image_url',image_url:{url:url}}}}
-if(type==='application/pdf'||/\.pdf$/i.test(name)){const dataUrl=await asDataURL(file);const base64=dataUrl.split(',')[1]||'';return {label:name,part:{type:'file',file:{filename:name,file_data:base64}}}}
-if(type.startsWith('audio/')||/\.(wav|mp3)$/i.test(name)){const dataUrl=await asDataURL(file);const base64=dataUrl.split(',')[1]||'';let fmt='wav';if(/mp3/.test(type)||/\.mp3$/i.test(name))fmt='mp3';else if(/wav/.test(type)||/\.wav$/i.test(name))fmt='wav';return {label:name,part:{type:'input_audio',input_audio:{data:base64,format:fmt}}}}
+async function toAttach(file){if(file instanceof File){const name=file.name||'file',mime=(file.type||'application/octet-stream').toLowerCase(),bytes=file.size||0; if(/^image\//.test(mime)||/\.(png|jpe?g|webp|gif)$/i.test(name)){const data=await asDataURL(file);return {name,bytes,mime,data,mode:'dataURL',part:{type:'image_url',image_url:{url:data}}}
+} if(mime==='application/pdf'||/\.pdf$/i.test(file.name||'')){const data=await asDataURL(file);return {name:file.name||'file.pdf',bytes:file.size||0,mime:'application/pdf',data:b64(data),mode:'base64',part:{type:'file',file:{filename:file.name||'file.pdf',file_data:b64(data)}}}
+} if(/^audio\//.test(mime)||/\.(wav|mp3)$/i.test(file.name||'')){const data=await asDataURL(file);let fmt=/mp3/.test(mime)||/\.mp3$/i.test(file.name||'')?'mp3':'wav';return {name:file.name||'audio.'+fmt,bytes:file.size||0,mime:mime,data:b64(data),mode:'base64',part:{type:'input_audio',input_audio:{data:b64(data),format:fmt}}}
+} return null}
+if(file&&file.name==null&&file.data){const name=file.name||'file',mime=(file.mime||'application/octet-stream').toLowerCase(),bytes=file.size||0; if(/^image\//.test(mime)){const data=`data:${mime};base64,${file.data}`;return {name,bytes,mime,data,mode:'dataURL',part:{type:'image_url',image_url:{url:data}}}
+} if(mime==='application/pdf'){return {name,bytes,mime,data:file.data,mode:'base64',part:{type:'file',file:{filename:name,file_data:file.data}}}
+} if(/^audio\//.test(mime)){let fmt=/mp3/.test(mime)?'mp3':'wav';return {name,bytes,mime,data:file.data,mode:'base64',part:{type:'input_audio',input_audio:{data:file.data,format:fmt}}}
+} return {name,bytes,mime,data:file.data,mode:'base64',part:{type:'file',file:{filename:name,file_data:file.data}}}}
 return null}
+function attachmentsText(id,arr){const head='**Attachments**',list=arr.map((a,i)=>`- [${esc(a.name)} • ${fmtSize(a.bytes)}](#dl-${id}-${i})`).join('\n');return head+'\n'+list}
+function addAttachmentTree(role,arr){if(!arr?.length)return;const id=gid(),text=attachmentsText(id,arr),meta={role,content:text,contentParts:[{type:'text',text}],id,kind:'attachments',attachmentsMeta:arr.map(a=>({name:a.name,bytes:a.bytes,mime:a.mime,mode:a.mode,data:a.mode==='dataURL'?a.data:a.data}))};const b=addMessage(meta,true);b.dataset.mid=id}
 el.attachBtn.addEventListener('click',()=>{if(state.busy)return;if(state.attachments.length){state.attachments=[];updateAttachBadge();el.fileInput.value=''};el.fileInput.click()})
-el.fileInput.addEventListener('change',async()=>{const files=[...(el.fileInput.files||[])];if(!files.length)return;for(const f of files){const part=await fileToPart(f).catch(()=>null);if(part)state.attachments.push(part)}updateAttachBadge()})
-el.composer.addEventListener('submit',async e=>{e.preventDefault();if(state.busy)return;const text=el.input.value.trim();if(!text&&!state.attachments.length)return;if(state.messages.length===0)state.currentThreadId=null;await ensureThreadOnFirstUser(text||'(attachments)');el.input.value='';const names=state.attachments.map(a=>a.label).join(', ');const display=text+(names?`\n\n**Attachments:** ${esc(names)}`:'');const contentParts=[];if(text)contentParts.push({type:'text',text});state.attachments.forEach(a=>contentParts.push(a.part));addMessage({role:'user',content:display,contentParts});state.busy=true;setBtnStop();const a=getActiveSune();const suneMeta={sune_name:a.name,model:store.model,avatar:a.avatar||''};const suneBubble=addSuneBubbleStreaming(suneMeta);let buf='',completed=false;await askOpenRouterStreaming((delta,done)=>{buf+=delta;renderMarkdown(suneBubble,buf,{enhance:false});if(done&&!completed){completed=true;setBtnSend();state.busy=false;enhanceCodeBlocks(suneBubble,true);state.messages.push({role:'assistant',content:buf,...suneMeta});persistThread();queueMicrotask(()=>el.chat.scrollTo({top:el.chat.scrollHeight,behavior:'smooth'}))}});state.attachments=[];updateAttachBadge()})
+el.fileInput.addEventListener('change',async()=>{const files=[...(el.fileInput.files||[])];if(!files.length)return;for(const f of files){const at=await toAttach(f).catch(()=>null);if(at)state.attachments.push(at)}updateAttachBadge()})
+el.messages.addEventListener('click',async e=>{const a=e.target.closest('a[href^="#dl-"]');if(!a)return; e.preventDefault();const m=a.getAttribute('href').match(/^#dl-([^-]+)-(\d+)$/);if(!m)return;const id=m[1],i=+m[2];const msg=state.messages.find(x=>x.id===id),meta=msg?.attachmentsMeta?.[i];if(!meta)return;let blob;if(meta.mode==='dataURL'){blob=await (await fetch(meta.data)).blob()}else{const bin=Uint8Array.from(atob(meta.data),c=>c.charCodeAt(0));blob=new Blob([bin],{type:meta.mime||'application/octet-stream'})}const url=URL.createObjectURL(blob),dl=document.createElement('a');dl.href=url;dl.download=meta.name||'download';document.body.appendChild(dl);dl.click();dl.remove();URL.revokeObjectURL(url)})
+el.composer.addEventListener('submit',async e=>{e.preventDefault();if(state.busy)return;const text=el.input.value.trim();if(!text&&!state.attachments.length)return;if(state.messages.length===0)state.currentThreadId=null;await ensureThreadOnFirstUser(text||'(attachments)');el.input.value='';const parts=[];if(text)parts.push({type:'text',text});state.attachments.forEach(a=>parts.push(a.part));addMessage({role:'user',content:text||'(sent attachments)',contentParts:parts});if(state.attachments.length)addAttachmentTree('user',state.attachments);state.busy=true;setBtnStop();const a=getActiveSune();const suneMeta={sune_name:a.name,model:store.model,avatar:a.avatar||''};const suneBubble=addSuneBubbleStreaming(suneMeta);let buf='',completed=false;await askOpenRouterStreaming((delta,done)=>{buf+=delta;renderMarkdown(suneBubble,buf,{enhance:false});if(done&&!completed){completed=true;setBtnSend();state.busy=false;enhanceCodeBlocks(suneBubble,true);state.messages.push({role:'assistant',content:buf,...suneMeta});persistThread();queueMicrotask(()=>el.chat.scrollTo({top:el.chat.scrollHeight,behavior:'smooth'}))}});state.attachments=[];updateAttachBadge()})
 let jar=null;const ensureJar=async()=>{if(jar)return jar;const mod=await import('https://medv.io/codejar/codejar.js');const CodeJar=mod.CodeJar||mod.default;const hl=ed=>{ed.innerHTML=hljs.highlight(ed.textContent,{language:'javascript'}).value};jar=CodeJar(el.scriptEditor,hl,{tab:'  '});return jar}
 function openSettings(){const a=getActiveSune(),s=a.settings;el.set_model.value=s.model;el.set_temperature.value=s.temperature;el.set_top_p.value=s.top_p;el.set_top_k.value=s.top_k;el.set_frequency_penalty.value=s.frequency_penalty;el.set_presence_penalty.value=s.presence_penalty;el.set_repetition_penalty.value=s.repetition_penalty;el.set_min_p.value=s.min_p;el.set_top_a.value=s.top_a;el.set_reasoning_effort.value=s.reasoning_effort||'default';el.set_system_prompt.value=s.system_prompt;showTab('Model');el.settingsModal.classList.remove('hidden')}
 const closeSettings=()=>{el.settingsModal.classList.add('hidden')}
@@ -197,6 +206,8 @@ el.threadsImportOption.addEventListener('click',()=>{importMode='threads';el.imp
 el.importInput.addEventListener('change',async()=>{const file=el.importInput.files?.[0];if(!file)return;try{const text=await file.text();const data=JSON.parse(text);if(importMode==='sunes'){const list=Array.isArray(data)?data:(Array.isArray(data.sunes)?data.sunes:[]);if(!list.length)throw new Error('No sunes');const incoming=list.map(a=>makeSune(a||{}));const map={};incoming.forEach(s=>{if(!s.id)s.id=gid();const k=s.id,prev=map[k];map[k]=!prev||(+s.updatedAt>+prev.updatedAt)?s:prev});let added=0,updated=0;const idx=Object.fromEntries(sunes.map(s=>[s.id,s]));Object.values(map).forEach(s=>{const ex=idx[s.id];if(!ex){sunes.push(s);added++}else if(+s.updatedAt>+ex.updatedAt){Object.assign(ex,s);updated++}});su.save(sunes);if(data.activeId&&sunes.some(x=>x.id===data.activeId))su.setActiveId(data.activeId);renderSidebar();reflectActiveSune();state.currentThreadId=null;clearChat();alert(`${added} new, ${updated} updated.`)}else if(importMode==='threads'){const arr=Array.isArray(data)?data:(Array.isArray(data.threads)?data.threads:[]);if(!arr.length)throw new Error('No threads');const norm=t=>({id:t.id||gid(),title:titleFrom(t.title||titleFrom(t.messages?.find?.(m=>m.role==='user')?.content||'')),pinned:!!t.pinned,updatedAt:t.updatedAt||Date.now(),messages:Array.isArray(t.messages)?t.messages.filter(m=>m&&m.role&&m.content):[]});const best={};arr.forEach(t=>{const n=norm(t),k=n.id,prev=best[k];best[k]=!prev||(+n.updatedAt>+prev.updatedAt)?n:prev});let kept=0,skipped=0;const idx=Object.fromEntries(threads.map(t=>[t.id,t]));for(const th of Object.values(best)){const ex=idx[th.id];if(ex&&+ex.updatedAt>=+th.updatedAt){skipped++;continue}if(!ex)threads.push(th);else Object.assign(ex,th);kept++}await tsave(threads);await renderHistory();alert(`${kept} imported, ${skipped} skipped (older).`)}el.userMenu.classList.add('hidden')}catch{alert('Import failed')}finally{importMode=null}})
 function kbUpdate(){const vv=window.visualViewport;const overlap=vv?Math.max(0,(window.innerHeight-(vv.height+vv.offsetTop))):0;document.documentElement.style.setProperty('--kb',overlap+'px');const fh=el.footer.getBoundingClientRect().height;document.documentElement.style.setProperty('--footer-h',fh+'px');el.footer.style.transform='translateY('+(-overlap)+'px)';el.chat.style.scrollPaddingBottom=(fh+overlap+16)+'px'}
 function kbBind(){if(window.visualViewport){['resize','scroll'].forEach(ev=>visualViewport.addEventListener(ev,()=>kbUpdate(),{passive:true}))}['resize','orientationchange'].forEach(ev=>window.addEventListener(ev,()=>setTimeout(kbUpdate,50),{passive:true}));['focus','click'].forEach(ev=>el.input.addEventListener(ev,()=>{setTimeout(()=>{kbUpdate();el.input.scrollIntoView({block:'nearest',behavior:'smooth'})},0)}))}
+function activeMeta(){const a=getActiveSune();return {sune_name:a.name,model:store.model,avatar:a.avatar||''}}
+window.suneAttach=async(files,opts={toAPI:true,tree:true})=>{const arr=[];for(const f of files||[])arr.push(await toAttach(f));const clean=arr.filter(Boolean);if(!clean.length)return;const meta=activeMeta();if(opts.toAPI){const m={role:'assistant',content:'(files attached)',contentParts:clean.map(a=>a.part),...meta};addMessage(m);state.messages.push(m)} if(opts.tree)addAttachmentTree('assistant',clean);await persistThread()}
 async function init(){threads=await tload();await renderHistory();renderSidebar();reflectActiveSune();clearChat();icons();kbBind();kbUpdate()}
 window.addEventListener('resize',()=>{hideHistoryMenu();hideSuneMenu()})
 init()