refactor(ui): consolidate Theme.qml tokens and replace unicode glyphs with SVG icons

src/pygui/ISC/Tabs/StatusTab.qml

@@ -1,6 +1,7 @@
 import QtQuick
 import QtQuick.Layouts
 import QtQuick.Controls
+import QtQuick.Controls.impl
 import QtQuick.Dialogs
 import ISC
 
@@ -211,7 +212,7 @@ ColumnLayout {
                                     id: statusPillText
                                     anchors.centerIn: parent
                                     text: root.isConnected ? "ACTIVE" : (root.isBusy ? deviceController.connectionStatus.replace("...", "").toUpperCase() : "INACTIVE")
-                                    color: "#111111"
+                                    color: Theme.statusBadgeText
                                     font.pixelSize: Theme.fontXs
                                     font.weight: Font.Bold
                                     font.family: Theme.uiFontFamily
@@ -483,9 +484,12 @@ ColumnLayout {
                     anchors.rightMargin: Theme.panelPadding
                     spacing: 8
 
-                    Text {
-                        text: "📄"
-                        font.pixelSize: Theme.fontSm
+                    IconImage {
+                        source: "icons/file-text.svg"
+                        width: 14; height: 14
+                        sourceSize.width: 14
+                        sourceSize.height: 14
+                        color: Theme.bodyColor
                         visible: root.csvPath !== ""
                         Layout.alignment: Qt.AlignVCenter
                     }