Bug hunt V7:

DB:
- Aggressive je_klub=false flag for programs/treninzi/totals (>100K€ no klub_id)
- 53 ne-klubovi flagged false (RSS Rijeka ukupni, Stručni rad, Potpora loptačkim, etc)

Frontend (sport2.html):
- Panel back button (← Natrag) + history stack
- window._panelHistory + pushPanelState + panelBack functions
- closePanel resets history

static/sport2.html

@@ -362,8 +362,11 @@ a.tag:hover,.tag[onclick]:hover{transform:translateY(-1px);filter:brightness(1.1
 <div id="panel-overlay" onclick="closePanel()"></div>
 <div id="panel">
   <div id="panel-hdr">
-    <div id="panel-hdr-t">Detalji</div>
-    <div id="panel-x" onclick="closePanel()">×</div>
+    <div style="display:flex;align-items:center;gap:8px">
+      <button id="panel-back" onclick="panelBack()" style="background:var(--bg3);border:1px solid var(--rim);color:var(--t1);padding:5px 10px;border-radius:4px;cursor:pointer;display:none" title="Nazad">← Natrag</button>
+      <div id="panel-hdr-t">Detalji</div>
+    </div>
+    <div id="panel-x" onclick="closePanel()" title="Zatvori">×</div>
   </div>
   <div id="panel-body"></div>
 </div>
@@ -3451,6 +3454,43 @@ window.toggleSportasHNS = function(){
   window._sportas_only_hns = !window._sportas_only_hns;
   if(typeof loadSportasi === 'function') loadSportasi();
 };
+
+// PANEL HISTORY STACK + NATRAG (CRISIS V7)
+window._panelHistory = [];
+
+window.pushPanelState = function(title, htmlContent, callback){
+  // callback may be null — to render this state again later
+  window._panelHistory.push({title, htmlContent, callback});
+  const back = document.getElementById('panel-back');
+  if(back) back.style.display = window._panelHistory.length > 1 ? 'inline-flex' : 'none';
+};
+
+window.panelBack = function(){
+  if(window._panelHistory.length <= 1){ closePanel(); return; }
+  // Remove current state
+  window._panelHistory.pop();
+  // Restore previous
+  const prev = window._panelHistory[window._panelHistory.length - 1];
+  const t = document.getElementById('panel-hdr-t');
+  const b = document.getElementById('panel-body');
+  if(t) t.textContent = prev.title;
+  if(b) b.innerHTML = prev.htmlContent;
+  if(typeof prev.callback === 'function') prev.callback();
+  const back = document.getElementById('panel-back');
+  if(back) back.style.display = window._panelHistory.length > 1 ? 'inline-flex' : 'none';
+};
+
+// Override closePanel — clear history
+window._origClosePanel = window.closePanel;
+window.closePanel = function(){
+  window._panelHistory = [];
+  const back = document.getElementById('panel-back');
+  if(back) back.style.display = 'none';
+  const p = document.getElementById('panel');
+  if(p) p.classList.remove('open');
+  const ov = document.getElementById('panel-overlay');
+  if(ov) ov.style.display = 'none';
+};
 </script>
 </body>
 </html>