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/backend/controllers/device_controller.py

@@ -18,9 +18,11 @@ from pygui.backend.models.data_model import TemperatureTableModel
 from pygui.backend.utils import slot_error_boundary
 from pygui.backend.visualization.graph_view import GraphView
 from pygui.serialcomm.data_parser import (
+    convert_to_debug_temperatures,
     convert_to_temperatures,
     parse_binary_data,
     remove_trailing_zeros,
+    save_debug_csv,
     save_to_csv,
 )
 from pygui.serialcomm.serial_port import WaferInfo
@@ -555,10 +557,29 @@ class DeviceController(QObject):
                 self._debugFinished.emit({"error": "F1 read failed"})
                 return
 
+            fc = (
+                self._last_wafer_info.get("familyCode", "")
+                if self._last_wafer_info
+                else ""
+            )
+            sensor_hex = parse_binary_data(sensor_data, fc)
+            debug_hex = parse_binary_data(debug_data, fc)
+            if not sensor_hex or not debug_hex:
+                self._debugFinished.emit({"error": "Debug binary parse failed"})
+                return
+
+            temp_data = convert_to_temperatures(sensor_hex, fc)
+            debug_temp_data = convert_to_debug_temperatures(debug_hex)
+            csv_path = save_debug_csv(temp_data, debug_temp_data, self._save_data_dir)
+            if csv_path is None:
+                self._debugFinished.emit({"error": "Debug CSV save failed"})
+                return
+
             self._debugFinished.emit({
                 "success": True,
                 "sensor_bytes": len(sensor_data),
                 "debug_bytes": len(debug_data),
+                "csv_path": csv_path,
             })
         except Exception as exc:
             log.exception("Debug worker crashed: %s", exc)
@@ -572,10 +593,11 @@ class DeviceController(QObject):
             self._set_connection_status("Connected")
             sensor_bytes = result.get("sensor_bytes", 0)
             debug_bytes = result.get("debug_bytes", 0)
-            self._append_log(
-                f"Debug read complete: {sensor_bytes} sensor bytes, "
-                f"{debug_bytes} debug bytes"
-            )
+            csv_path = result.get("csv_path", "")
+            msg = f"Debug read complete: {sensor_bytes} sensor bytes, {debug_bytes} debug bytes"
+            if csv_path:
+                msg += f", CSV written to {csv_path}"
+            self._append_log(msg)
         else:
             self._set_connection_status("Disconnected")
             err_msg = result.get("error", "Debug read failed")