fix(LogViewer): restore hover-driven chart cursor after extraction

src/AnalyzeView/LogViewer/LogViewerAltChart.qml

@@ -256,9 +256,10 @@ Item {
             z: 10
         }
 
-        // Mouse area — drag to zoom, right-click to reset, click/move to set cursor
+        // Mouse area — drag to zoom, right-click to reset, hover/click to set cursor
         MouseArea {
             anchors.fill: parent
+            hoverEnabled: !ScreenTools.isMobile
             acceptedButtons: Qt.LeftButton | Qt.RightButton
             z: 11
 
@@ -275,6 +276,7 @@ Item {
                 _zoomRect.width = 0
                 _zoomRect.height = _altChart.plotArea.height
                 _zoomRect.visible = true
+                root._updateCursor(mouse.x)
             }
 
             onPositionChanged: (mouse) => {
@@ -283,6 +285,10 @@ Item {
                     const right = Math.max(_dragStartX, mouse.x)
                     _zoomRect.x = left
                     _zoomRect.width = Math.max(0, right - left)
+                    return
+                }
+                if (!pressed) {
+                    root._updateCursor(mouse.x)
                 }
             }
 
@@ -291,12 +297,17 @@ Item {
                 const dragW = _zoomRect.width
                 _zoomRect.visible = false
                 if (dragW < ScreenTools.defaultFontPixelWidth * 0.5) {
-                    root._updateCursor(mouse.x)
                     return
                 }
                 const leftX  = root._pixelToAxisX(_zoomRect.x)
                 const rightX = root._pixelToAxisX(_zoomRect.x + _zoomRect.width)
                 root._applyZoom(Math.min(leftX, rightX), Math.max(leftX, rightX))
+                root._updateCursor(mouse.x)
+            }
+
+            onExited: {
+                _markerVisible = false
+                root.markerCleared()
             }
         }
 

src/AnalyzeView/LogViewer/LogViewerChart.qml

@@ -564,6 +564,7 @@ ColumnLayout {
             id: _chartZoomArea
             anchors.fill: parent
             enabled: _binXAxis.max > _binXAxis.min
+            hoverEnabled: !ScreenTools.isMobile
             acceptedButtons: Qt.LeftButton | Qt.RightButton
             z: 1001
 
@@ -580,6 +581,7 @@ ColumnLayout {
                 _zoomSelectionRect.width = 0
                 _zoomSelectionRect.height = _binChart.plotArea.height
                 _zoomSelectionRect.visible = true
+                _updateCursorInfo(mouse.x, mouse.y, width, height)
             }
 
             onPositionChanged: (mouse) => {
@@ -588,6 +590,10 @@ ColumnLayout {
                     const right = Math.max(_dragStartX, mouse.x)
                     _zoomSelectionRect.x = left
                     _zoomSelectionRect.width = Math.max(0, right - left)
+                    return
+                }
+                if (!pressed) {
+                    _updateCursorInfo(mouse.x, mouse.y, width, height)
                 }
             }
 
@@ -596,12 +602,16 @@ ColumnLayout {
                 const dragWidth = _zoomSelectionRect.width
                 _zoomSelectionRect.visible = false
                 if (dragWidth < ScreenTools.defaultFontPixelWidth * 0.5) {
-                    _updateCursorInfo(mouse.x, mouse.y, width, height)
                     return
                 }
                 const leftX  = _pixelToAxisX(_zoomSelectionRect.x)
                 const rightX = _pixelToAxisX(_zoomSelectionRect.x + _zoomSelectionRect.width)
                 applyZoomRange(Math.min(leftX, rightX), Math.max(leftX, rightX))
+                _updateCursorInfo(mouse.x, mouse.y, width, height)
+            }
+
+            onExited: {
+                _positionMarkerVisible = false
             }
         }
 
@@ -614,6 +624,15 @@ ColumnLayout {
             height: _binChart.plotArea.height
             color: qgcPal.text
             z: 1002
+
+            Connections {
+                target: _binChart
+                function onPlotAreaChanged() {
+                    if (_positionMarkerVisible) {
+                        _refreshCursorPixelPos()
+                    }
+                }
+            }
         }
 
         // Value popup