fix(orchestrator): keep polling while text stays selected

The hub page skipped every 10 s state poll while any text was selected, so operator rows that operator.py run had closed stayed on screen until the selection ended (2026-11-12: no /api/state from 09:29 to 09:54 while the CLI closed 19 rows). A selection now holds the poll back for at most 20 s, and returning to the window reloads at once.

🎯 Fix: 90 %
💥 Break: 3 %
💸 Cost: 100 %
⏱️ Time: 100 %
🛡️ Security: 100 %
🏆 Score: 87
🚦 Gate: ✅ 90/5, cost and time <= 100, security 100 %

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

orchestrator/templates/page-load.js

@@ -30,8 +30,13 @@
     }
   }
 
+  const SELECTION_HOLD = 20000;
+  let selectedSince = 0;
+
   function refresh() {
-    if (!ui.busy && !ui.playing && !document.hidden && String(window.getSelection()).length === 0) {
+    const selected = String(window.getSelection()).length > 0;
+    selectedSince = selected ? selectedSince || Date.now() : 0;
+    if (!ui.busy && !ui.playing && !document.hidden && (!selected || Date.now() - selectedSince >= SELECTION_HOLD)) {
       load();
     }
   }