ekg stats: add 6h/24h/7d window filter and webui selector for time-windowed insights

pkg/nodes/registry_server.go

@@ -1639,6 +1639,21 @@ func (s *RegistryServer) handleWebUIEKGStats(w http.ResponseWriter, r *http.Requ
 	}
 	workspace := strings.TrimSpace(s.workspacePath)
 	ekgPath := filepath.Join(workspace, "memory", "ekg-events.jsonl")
+	window := strings.ToLower(strings.TrimSpace(r.URL.Query().Get("window")))
+	windowDur := 24 * time.Hour
+	switch window {
+	case "6h":
+		windowDur = 6 * time.Hour
+	case "24h", "":
+		windowDur = 24 * time.Hour
+	case "7d":
+		windowDur = 7 * 24 * time.Hour
+	}
+	selectedWindow := window
+	if selectedWindow == "" {
+		selectedWindow = "24h"
+	}
+	cutoff := time.Now().UTC().Add(-windowDur)
 	b, _ := os.ReadFile(ekgPath)
 	lines := strings.Split(string(b), "\n")
 	if len(lines) > 0 && lines[len(lines)-1] == "" {
@@ -1667,6 +1682,14 @@ func (s *RegistryServer) handleWebUIEKGStats(w http.ResponseWriter, r *http.Requ
 		if json.Unmarshal([]byte(ln), &row) != nil {
 			continue
 		}
+		ts := strings.TrimSpace(fmt.Sprintf("%v", row["time"]))
+		if ts != "" {
+			if tm, err := time.Parse(time.RFC3339, ts); err == nil {
+				if tm.Before(cutoff) {
+					continue
+				}
+			}
+		}
 		provider := strings.TrimSpace(fmt.Sprintf("%v", row["provider"]))
 		status := strings.ToLower(strings.TrimSpace(fmt.Sprintf("%v", row["status"])))
 		errSig := strings.TrimSpace(fmt.Sprintf("%v", row["errsig"]))
@@ -1731,6 +1754,7 @@ func (s *RegistryServer) handleWebUIEKGStats(w http.ResponseWriter, r *http.Requ
 	}
 	_ = json.NewEncoder(w).Encode(map[string]interface{}{
 		"ok":                       true,
+		"window":                   selectedWindow,
 		"provider_top":             toTopScore(providerScore, 5),
 		"provider_top_workload":    toTopScore(providerScoreWorkload, 5),
 		"errsig_top":               toTopCount(errSigCount, 5),

webui/src/pages/TaskAudit.tsx

@@ -47,6 +47,7 @@ const TaskAudit: React.FC = () => {
   const [ekgSourceStats, setEkgSourceStats] = useState<Record<string, number>>({});
   const [ekgChannelStats, setEkgChannelStats] = useState<Record<string, number>>({});
   const [ekgEscalationCount, setEkgEscalationCount] = useState<number>(0);
+  const [ekgWindow, setEkgWindow] = useState<'6h' | '24h' | '7d'>('24h');
 
   const fetchData = async () => {
     setLoading(true);
@@ -67,7 +68,8 @@ const TaskAudit: React.FC = () => {
       } else {
         setDailyReport('');
       }
-      const ekgUrl = `/webui/api/ekg_stats${q || ''}`;
+      const ekgJoin = q ? `${q}&window=${encodeURIComponent(ekgWindow)}` : `?window=${encodeURIComponent(ekgWindow)}`;
+      const ekgUrl = `/webui/api/ekg_stats${ekgJoin}`;
       const er = await fetch(ekgUrl);
       if (er.ok) {
         const ej = await er.json();
@@ -89,7 +91,7 @@ const TaskAudit: React.FC = () => {
     }
   };
 
-  useEffect(() => { fetchData(); }, [q, reportDate]);
+  useEffect(() => { fetchData(); }, [q, reportDate, ekgWindow]);
 
 
 
@@ -149,7 +151,14 @@ const TaskAudit: React.FC = () => {
       </div>
 
       <div className="border border-zinc-800 rounded-xl bg-zinc-900/40 p-3 text-sm">
-        <div className="text-xs text-zinc-400 uppercase tracking-wider mb-2">EKG Insights</div>
+        <div className="flex items-center justify-between gap-2 mb-2">
+          <div className="text-xs text-zinc-400 uppercase tracking-wider">EKG Insights</div>
+          <select value={ekgWindow} onChange={(e)=>setEkgWindow(e.target.value as '6h' | '24h' | '7d')} className="bg-zinc-900 border border-zinc-700 rounded px-2 py-1 text-xs">
+            <option value="6h">6h</option>
+            <option value="24h">24h</option>
+            <option value="7d">7d</option>
+          </select>
+        </div>
         <div className="grid grid-cols-1 md:grid-cols-3 gap-3 text-xs">
           <div className="rounded-lg border border-zinc-800 bg-zinc-950/40 p-2">
             <div className="text-zinc-500 mb-1">Escalations</div>