fix(ui): 坐标轴面板硬编码颜色 token 化(深色模式合规,规范§1/§6.7)

按视觉规范审计修 AxesSettingsPanel 硬编码(深色模式下会失效):
- 应用按钮 #2f6fed/#2a63d4/radius6 → setDefault(true) 走全局 QPushButton:default(accent/primary,随主题)
- 关闭按钮 #888/#2f6fed → token(text/secondary / accent/primary)
- 放大系数标签 + 最小/最大值标签 #888 → token(text/secondary / text/tertiary)
- 面板圆角 10px → 8px(radius/lg,规范§3.2 画布浮窗)

构建:app 链接通过

src/app/AxesSettingsPanel.cpp

@@ -48,7 +48,7 @@ AxesSettingsPanel::AxesSettingsPanel(QWidget* parent) : QFrame(parent) {
     setFrameShape(QFrame::StyledPanel);
     applyTokenizedStyleSheet(
         this, QStringLiteral("QFrame{background:{{bg/panel}};border:1px solid {{border/default}};"
-                             "border-radius:10px;}"));
+                             "border-radius:8px;}"));  // radius/lg=8（规范§3.2 画布浮窗）
     setFixedWidth(320);
 
     auto* v = new QVBoxLayout(this);
@@ -63,9 +63,12 @@ AxesSettingsPanel::AxesSettingsPanel(QWidget* parent) : QFrame(parent) {
     close->setFixedSize(24, 24);
     close->setCursor(Qt::PointingHandCursor);
     // 显式覆盖全局 QPushButton 的 padding(6px 14px)/border——否则 24×24 容不下 padding，× 被挤出不可见。
-    close->setStyleSheet(QStringLiteral(
-        "QPushButton{border:none;background:transparent;padding:0;margin:0;font-size:16px;color:#888;}"
-        "QPushButton:hover{color:#2f6fed;}"));
+    //   颜色走 token（避免深色模式失效）。
+    applyTokenizedStyleSheet(
+        close, QStringLiteral(
+                   "QPushButton{border:none;background:transparent;padding:0;margin:0;font-size:16px;"
+                   "color:{{text/secondary}};}"
+                   "QPushButton:hover{color:{{accent/primary}};}"));
     connect(close, &QPushButton::clicked, this, &AxesSettingsPanel::closed);
     titleRow->addWidget(title);
     titleRow->addStretch(1);
@@ -100,7 +103,8 @@ AxesSettingsPanel::AxesSettingsPanel(QWidget* parent) : QFrame(parent) {
     scaleSlider_->setSingleStep(1);
     scaleSlider_->setPageStep(1);  // 点击轨道按 1 步移动（默认 pageStep=10 → 点一下直接跳到 10 的 bug）
     scaleLabel_ = new QLabel(QStringLiteral("1.0×"), this);
-    scaleLabel_->setStyleSheet(QStringLiteral("border:none;color:#888;min-width:36px;"));
+    applyTokenizedStyleSheet(scaleLabel_,
+                             QStringLiteral("border:none;color:{{text/secondary}};min-width:36px;"));
     connect(scaleSlider_, &QSlider::valueChanged, this,
             [this](int v) { scaleLabel_->setText(QStringLiteral("%1.0×").arg(v)); });
     scaleRow->addWidget(scaleSlider_, 1);
@@ -111,9 +115,7 @@ AxesSettingsPanel::AxesSettingsPanel(QWidget* parent) : QFrame(parent) {
     auto* btns = new QHBoxLayout();
     auto* cancel = new QPushButton(QStringLiteral("取消"), this);
     auto* apply = new QPushButton(QStringLiteral("应用"), this);
-    apply->setStyleSheet(QStringLiteral(
-        "QPushButton{background:#2f6fed;color:white;border:none;border-radius:6px;padding:6px 18px;}"
-        "QPushButton:hover{background:#2a63d4;}"));
+    apply->setDefault(true);  // 主按钮：走全局 QPushButton:default 样式(accent/primary,随主题)，不再硬编码蓝
     connect(cancel, &QPushButton::clicked, this, &AxesSettingsPanel::closed);
     connect(apply, &QPushButton::clicked, this, [this] {
         auto rd = [](const Row& r) {
@@ -147,7 +149,7 @@ AxesSettingsPanel::Row AxesSettingsPanel::addAxisRow(QVBoxLayout* col, const QSt
     auto* range = new QHBoxLayout();
     auto* loCol = new QVBoxLayout();
     auto* loLbl = new QLabel(QStringLiteral("最小值"), this);
-    loLbl->setStyleSheet(QStringLiteral("border:none;color:#888;"));
+    applyTokenizedStyleSheet(loLbl, QStringLiteral("border:none;color:{{text/tertiary}};"));
     loCol->addWidget(loLbl);
     r.lo = new QDoubleSpinBox(this);
     r.lo->setRange(-1e6, 1e6);
@@ -156,7 +158,7 @@ AxesSettingsPanel::Row AxesSettingsPanel::addAxisRow(QVBoxLayout* col, const QSt
     range->addLayout(loCol);
     auto* hiCol = new QVBoxLayout();
     auto* hiLbl = new QLabel(QStringLiteral("最大值"), this);
-    hiLbl->setStyleSheet(QStringLiteral("border:none;color:#888;"));
+    applyTokenizedStyleSheet(hiLbl, QStringLiteral("border:none;color:{{text/tertiary}};"));
     hiCol->addWidget(hiLbl);
     r.hi = new QDoubleSpinBox(this);
     r.hi->setRange(-1e6, 1e6);