Add task reports and streamline GPU charts

audit/internal/webui/metricsdb_test.go

@@ -143,3 +143,32 @@ CREATE TABLE temp_metrics (
 		t.Fatalf("MemClockMHz=%v want 2600", got)
 	}
 }
+
+func TestMetricsDBLoadBetweenFiltersWindow(t *testing.T) {
+	db, err := openMetricsDB(filepath.Join(t.TempDir(), "metrics.db"))
+	if err != nil {
+		t.Fatalf("openMetricsDB: %v", err)
+	}
+	defer db.Close()
+
+	base := time.Unix(1_700_000_000, 0).UTC()
+	for i := 0; i < 5; i++ {
+		if err := db.Write(platform.LiveMetricSample{
+			Timestamp:  base.Add(time.Duration(i) * time.Minute),
+			CPULoadPct: float64(i),
+		}); err != nil {
+			t.Fatalf("Write(%d): %v", i, err)
+		}
+	}
+
+	got, err := db.LoadBetween(base.Add(1*time.Minute), base.Add(3*time.Minute))
+	if err != nil {
+		t.Fatalf("LoadBetween: %v", err)
+	}
+	if len(got) != 3 {
+		t.Fatalf("LoadBetween len=%d want 3", len(got))
+	}
+	if !got[0].Timestamp.Equal(base.Add(1*time.Minute)) || !got[2].Timestamp.Equal(base.Add(3*time.Minute)) {
+		t.Fatalf("window=%v..%v", got[0].Timestamp, got[2].Timestamp)
+	}
+}