Add hash fragment article loader for Zalo browser

static/app_v2.js

@@ -256,6 +256,23 @@ async function loadCat(id){const el=document.getElementById('view-cat');el.inner
 fetch('/api/storage_status').then(r=>r.json()).then(j=>{if(!j.persistent){const home=document.getElementById('view-home');if(home){const w=document.createElement('div');w.className='storage-warn';w.innerHTML='⚠️ Persistent Storage chưa bật.';home.prepend(w)}}}).catch(()=>{});
 
 // === AUTO-OPEN SHARE LINKS (/s?url=... sets pending_article) ===
+// Hash fragment fallback: nếu localStorage không work (Zalo browser), đọc từ hash
+(function(){
+  try{
+    var hash = window.location.hash;
+    if(hash && hash.length > 1){
+      var articleUrl = decodeURIComponent(hash.substring(1));
+      if(articleUrl.startsWith('http')){
+        // Clear hash để tránh reload
+        history.replaceState(null, '', window.location.pathname);
+        setTimeout(function(){
+          if(typeof readArticle==='function') readArticle(articleUrl);
+        }, 1500);
+      }
+    }
+  }catch(e){}
+})();
+
 (function(){
   try{
     const pa=localStorage.getItem('pending_article');