diff --git a/src/main.js b/src/main.js
index 2e90a00..a22211a 100644
--- a/src/main.js
+++ b/src/main.js
@@ -201,11 +201,32 @@ $(document).on('click',e=>{if(el.sunesSyncPopover&&!el.sunesSyncPopover.classLis
 const htmlTabs={index:['htmlTab_index','htmlEditor'],extension:['htmlTab_extension','extensionHtmlEditor']};function showHtmlTab(key){Object.entries(htmlTabs).forEach(([k,[tb,pn]])=>{const a=k===key;el[tb].classList.toggle('border-black',a);el[tb].classList.toggle('border-transparent',!a);el[tb].classList.toggle('hover:border-gray-300',!a);el[pn].classList.toggle('hidden',!a)})}
 el.htmlTab_index.textContent='index.html';el.htmlTab_extension.textContent='extension.html';
 el.htmlTab_index.onclick=()=>showHtmlTab('index');el.htmlTab_extension.onclick=()=>showHtmlTab('extension');
-const pullThreads=async()=>{const u=el.threadRepoInput.value.trim();if(!u.startsWith('gh://'))return;const info=parseGhUrl(u);try{const items=await ghApi(`${info.apiPath}?ref=${info.branch}`);if(!items){THREAD.list=[];await THREAD.save()}else{THREAD.list=items.map(i=>{if(i.type==='dir')return {id:i.name,title:i.name,type:'folder',updatedAt:0};if(i.type==='file'&&i.name.endsWith('.md'))return {id:i.path,title:i.name,type:'file',updatedAt:0};const d=deserializeThreadName(i.name);return d?{...d,status:'synced'}:null}).filter(Boolean);await THREAD.save()}await renderThreads()}catch(e){console.error('Auto-pull failed:',e)}};
+const pullThreads=async(invalidateAll=false)=>{
+  const u=el.threadRepoInput.value.trim();if(!u.startsWith('gh://'))return;
+  const info=parseGhUrl(u);
+  try{
+    const items=await ghApi(`${info.apiPath}?ref=${info.branch}`);
+    const local=await localforage.getItem('rem_index_'+u.substring(5))||[];
+    const remote=(items||[]).map(i=>{
+      if(i.type==='dir')return {id:i.name,title:i.name,type:'folder',updatedAt:0};
+      if(i.type==='file'&&i.name.endsWith('.md'))return {id:i.path,title:i.name,type:'file',updatedAt:0};
+      const d=deserializeThreadName(i.name);return d?{...d,status:'synced'}:null;
+    }).filter(Boolean);
+    for(const t of invalidateAll?[...local,...remote]:local){
+      if(t.type!=='thread')continue;
+      const next=remote.find(r=>r.type==='thread'&&r.id===t.id);
+      if(invalidateAll||t.status!=='synced'||!next||next.updatedAt>t.updatedAt)await localforage.removeItem('rem_t_'+t.id);
+    }
+    THREAD.list=remote;
+    await THREAD.save();
+    await renderThreads();
+    return true;
+  }catch(e){console.error('Auto-pull failed:',e);return false}
+};
 $(el.threadRepoInput).on('change',async()=>{const u=el.threadRepoInput.value.trim();localStorage.setItem('thread_repo_url',u);if(state.currentThreadId){state.currentThreadId=null;clearChat()}el.threadFolderBtn.classList.toggle('hidden',!u.startsWith('gh://'));el.threadBackBtn.classList.toggle('hidden',!u.startsWith('gh://')||u.split('/').length<=3);if(u.startsWith('gh://'))await pullThreads();else{await THREAD.load();await renderThreads()}});
 $(el.threadBackBtn).on('click',()=>{const u=el.threadRepoInput.value.trim();if(!u.startsWith('gh://'))return;const p=u.split('/');if(p.length>3){p.pop();el.threadRepoInput.value=p.join('/');el.threadRepoInput.dispatchEvent(new Event('change'))}});
 $(el.threadFolderBtn).on('click',async()=>{const n=prompt('Folder name:');if(!n)return;THREAD.list.unshift({id:n.trim(),title:n.trim(),type:'folder',updatedAt:Date.now()});await THREAD.save();await renderThreads()});
-$(el.threadSyncBtn).on('click',async()=>{const u=el.threadRepoInput.value.trim();if(!u.startsWith('gh://'))return;const mode=confirm('Sync Threads:\nOK = Upload (Push)\nCancel = Download (Pull)');const info=parseGhUrl(u);try{if(mode){const remoteItems=await ghApi(`${info.apiPath}?ref=${info.branch}`)||[],remoteMap={};remoteItems.forEach(i=>{const d=deserializeThreadName(i.name);if(d)remoteMap[d.id]={name:i.name,sha:i.sha}});const toRemove=[];for(const t of THREAD.list){if(t.status==='deleted'){if(remoteMap[t.id]){await ghApi(`${info.apiPath}/${remoteMap[t.id].name}`,'DELETE',{message:`Delete thread ${t.id}`,sha:remoteMap[t.id].sha,branch:info.branch});await localforage.removeItem('rem_t_'+t.id)}toRemove.push(t.id);continue}if(t.type!=='thread')continue;if(t.status==='modified'||t.status==='new'){const newName=serializeThreadName(t);let msgs=await localforage.getItem('rem_t_'+t.id);if((!msgs||!Array.isArray(msgs))&&remoteMap[t.id]){const text=await ghGetFileContent(info,remoteMap[t.id].name);if(text){try{msgs=JSON.parse(text);await localforage.setItem('rem_t_'+t.id,msgs)}catch(e){console.error(e)}}}if(remoteMap[t.id]&&remoteMap[t.id].name!==newName){await ghApi(`${info.apiPath}/${remoteMap[t.id].name}`,'DELETE',{message:`Rename thread ${t.id}`,sha:remoteMap[t.id].sha,branch:info.branch})}const x=await ghApi(`${info.apiPath}/${newName}?ref=${info.branch}`);await ghApi(`${info.apiPath}/${newName}`,'PUT',{message:`Sync thread ${t.id}`,content:utob(JSON.stringify(msgs||[],null,2)),branch:info.branch,sha:x?.sha});t.status='synced'}}THREAD.list=THREAD.list.filter(x=>!toRemove.includes(x.id));await THREAD.save();alert('Pushed to GitHub.')}else{await pullThreads();alert('Pulled from GitHub.')}await renderThreads()}catch(e){alert('Sync failed: '+e.message)}});
+$(el.threadSyncBtn).on('click',async()=>{const u=el.threadRepoInput.value.trim();if(!u.startsWith('gh://'))return;const mode=confirm('Sync Threads:\nOK = Upload (Push)\nCancel = Download (Pull)');const info=parseGhUrl(u);try{if(mode){const remoteItems=await ghApi(`${info.apiPath}?ref=${info.branch}`)||[],remoteMap={};remoteItems.forEach(i=>{const d=deserializeThreadName(i.name);if(d)remoteMap[d.id]={name:i.name,sha:i.sha}});const toRemove=[];for(const t of THREAD.list){if(t.status==='deleted'){if(remoteMap[t.id]){await ghApi(`${info.apiPath}/${remoteMap[t.id].name}`,'DELETE',{message:`Delete thread ${t.id}`,sha:remoteMap[t.id].sha,branch:info.branch});await localforage.removeItem('rem_t_'+t.id)}toRemove.push(t.id);continue}if(t.type!=='thread')continue;if(t.status==='modified'||t.status==='new'){const newName=serializeThreadName(t);let msgs=await localforage.getItem('rem_t_'+t.id);if((!msgs||!Array.isArray(msgs))&&remoteMap[t.id]){const text=await ghGetFileContent(info,remoteMap[t.id].name);if(text){try{msgs=JSON.parse(text);await localforage.setItem('rem_t_'+t.id,msgs)}catch(e){console.error(e)}}}if(remoteMap[t.id]&&remoteMap[t.id].name!==newName){await ghApi(`${info.apiPath}/${remoteMap[t.id].name}`,'DELETE',{message:`Rename thread ${t.id}`,sha:remoteMap[t.id].sha,branch:info.branch})}const x=await ghApi(`${info.apiPath}/${newName}?ref=${info.branch}`);await ghApi(`${info.apiPath}/${newName}`,'PUT',{message:`Sync thread ${t.id}`,content:utob(JSON.stringify(msgs||[],null,2)),branch:info.branch,sha:x?.sha});t.status='synced'}}THREAD.list=THREAD.list.filter(x=>!toRemove.includes(x.id));await THREAD.save();alert('Pushed to GitHub.')}else if(await pullThreads(true)){state.currentThreadId=null;clearChat();alert('Pulled from GitHub.')}await renderThreads()}catch(e){alert('Sync failed: '+e.message)}});
 
 let suneSyncBusy=false;
 const checkSuneSyncStatus=async()=>{