chore: cleanup

WaferMapTab stale comments + minor component fixes

src/pygui/ISC/Tabs/WaferMapTab.qml

@@ -246,29 +246,12 @@ Item {
             }
         }
 
-        // ── Body: 3 zones (TODO P2.1: becomes 2 zones) ──────────────────────
-        // -------------------------------------------------------------------
-        // TODO P2.1: Delete the SourcePanel Rectangle (lines ~219-233) —
-        //            the file list moved to the rail (P1.3 Map context panel).
-        //
-        // THINKING:
-        //   SourcePanel shows a file list driven by file_browser — now that
-        //   the Map tab's context panel in the rail (P1.3) provides the same
-        //   file list with search/filter, SourcePanel in the wafer body is
-        //   redundant. The wafer map gets more horizontal space.
-        //
-        //   After deletion: RowLayout has 2 children instead of 3.
-        //   Add Layout.fillWidth: true to the center ColumnLayout so it
-        //   fills the vacated width.
-        //
-        //   Cross-ref: P1.3 (Map context panel), P2.1 (this task)
-        // -------------------------------------------------------------------
+        // ── Body: 2 columns (wafer + trend + transport | readout) ──────────
         RowLayout {
             Layout.fillWidth: true
             Layout.fillHeight: true
             spacing: 16
 
-            // Source panel — moved to side rail (P2.1)
 
             ColumnLayout {
                 Layout.fillWidth: true
@@ -281,6 +264,7 @@ Item {
                     Layout.fillHeight: true
                     blend: readoutPanel.heatmapBlend
                     showLabels: readoutPanel.showLabels
+                    showThickness: readoutPanel.showThickness
                 }
                 Rectangle {
                     id: trendPane