perf(bridge): 3 optimizations — pollResponseGroup 1500ms, renderer adaptive idle, Bot single-pass scanner

extension/src/extension.ts

@@ -1429,7 +1429,7 @@ function generateApprovalObserverScript(_port: number): string {
   // ── Poll for Discord response (multi-button group aware) ──
   function pollResponseGroup(rid,btnRefs,bidList,groupKey){
     var polls=0;
-    var maxPolls=600; // 5 minutes at 500ms interval
+    var maxPolls=200; // 5 minutes at 1500ms interval
     var timer=setInterval(function(){
       polls++;
       // Check if ANY button in the group is still in DOM
@@ -1474,7 +1474,7 @@ function generateApprovalObserverScript(_port: number): string {
         delete _sent[groupKey];
         for(var ri=0;ri<bidList.length;ri++){delete _sent[bidList[ri]];}
       }).catch(function(){});
-    },500);
+    },1500);
   }
 
   // Legacy pollResponse for backward compatibility (single button)
@@ -1552,19 +1552,27 @@ function generateApprovalObserverScript(_port: number): string {
     // FALLBACK: periodic scan every 3s for any missed mutations
     setInterval(scheduleScan,3000);
 
+    // ── Adaptive idle detection for HTTP polls ──
+    var _lastActivity=Date.now();
+    var _idleThreshold=60000; // 60s without DOM changes → slow mode
+    new MutationObserver(function(){_lastActivity=Date.now();}).observe(document.body,{childList:true,subtree:true,attributes:true});
+    function getAdaptiveInterval(){return (Date.now()-_lastActivity>_idleThreshold)?10000:2000;}
+
     // ── DEEP-INSPECT POLLING: curl→Bridge→Renderer→Results ──
-    setInterval(function(){
-      if(!_ready||!BASE)return;
-      fetch(BASE+'/deep-inspect-trigger?t='+Date.now()).then(function(r){return r.json();}).then(function(d){
-        if(d.inspect){log('🔍 Deep inspect triggered via HTTP');runDeepInspect();}
-      }).catch(function(){});
-    },2000);
+    (function pollDeepInspect(){
+      if(_ready&&BASE){
+        fetch(BASE+'/deep-inspect-trigger?t='+Date.now()).then(function(r){return r.json();}).then(function(d){
+          if(d.inspect){log('🔍 Deep inspect triggered via HTTP');runDeepInspect();}
+        }).catch(function(){});
+      }
+      setTimeout(pollDeepInspect,getAdaptiveInterval());
+    })();
 
     // ── TRIGGER-CLICK: Extension→Renderer bridge for programmatic button clicks ──
     // Extension sets clickTrigger via tryApprovalStrategies → renderer polls and clicks
     // v3: uses deepFindButtons() to traverse iframes, webviews, shadow DOMs
-    setInterval(function(){
-      if(!_ready||!BASE)return;
+    (function pollTriggerClick(){
+      if(_ready&&BASE){
       fetch(BASE+'/trigger-click?t='+Date.now()).then(function(r){return r.json();}).then(function(d){
         if(!d.action)return;
         log('🔔 TRIGGER-CLICK received: action='+d.action);
@@ -1652,7 +1660,9 @@ function generateApprovalObserverScript(_port: number): string {
           log('⚠️ iframes='+document.querySelectorAll('iframe').length+' webviews='+document.querySelectorAll('webview').length);
         }
       }).catch(function(){});
-    },1000);
+      }
+      setTimeout(pollTriggerClick,getAdaptiveInterval());
+    })();
 
     _obs=true;
     log('v3 Observer active — deep DOM traversal + MutationObserver + trigger-click polling');