feat(debug): add debug read with CSV export

- Parse F1 debug data via family-independent temp formula
  (bits 4-14 scaled by 2**(i-8), sign at bit 0)
- Save sensor+debug temps side-by-side to debug_info.csv
- Wire READ DEBUG button in StatusActionsPanel
- Rename ReplayChart → RunChart; move into GraphTab
- Extract PanelBox/SectionTitle/PanelSlider in ReadoutPanel
  to cut ~300 lines of duplicated styling
- Add rightRailWidth token to Theme for consistent rail sizing
- Wrap ReadoutPanel in ScrollView so Thresholds card stays
  reachable when E-C delta rows appear

src/pygui/ISC/Tabs/GraphTab.qml

@@ -1,12 +1,13 @@
 import QtQuick
 import QtQuick.Layouts
 import ISC
-import ISC.Wafer
+import ISC.Tabs.components
 
 // ===== Graph Tab =====
 // Whole-run multi-sensor line chart (C# parity: tabGraph/chartData). Static
 // snapshot recomputed whenever a file is loaded — not live-updating during
-// a stream. See specs/plans/2026-07-10-graph-tab.md and
+// a stream. RunChart adds wheel zoom, drag pan, and a visible-range
+// min/max/avg strip. See specs/plans/2026-07-10-graph-tab.md and
 // docs/adr/0003-pyqtgraph-for-multi-sensor-charts.md.
 Item {
     id: root
@@ -38,13 +39,11 @@ Item {
         border.width: 1
         radius: Theme.radiusMd
 
-        GraphQuickItem {
+        RunChart {
             id: chart
             anchors.fill: parent
             anchors.margins: 8
             title: "Sensor Temperature Over Time"
-            xLabel: "Measurement Interval"
-            yLabel: "Temperature (°C)"
         }
     }
 }