feat(ela): 表格→ElaTableWidget(直替) + 对象树→ElaTreeView+QStandardItemModel

- ProjectListDialog: QTableWidget → ElaTableWidget(item 版直接继承 QTableWidget, 1 行)
- ObjectTreePanel: QTreeWidget → ElaTreeView + Qt 自带 QStandardItemModel(非手写 model);
  QTreeWidgetItem→QStandardItem, 勾选/点击逻辑改按 QModelIndex/itemChanged; ElaTreeView 自绘
  展开折叠指示(去掉自定义 chevron QSS); 行为(TM 勾选/点击发 tmClicked/tmCheckToggled)保持

src/app/ProjectListDialog.cpp

@@ -19,6 +19,7 @@
 #include <ElaComboBox.h>
 #include <ElaLineEdit.h>
 #include <ElaPushButton.h>
+#include <ElaTableWidget.h>
 
 namespace geopro::app {
 namespace {
@@ -66,7 +67,7 @@ ProjectListDialog::ProjectListDialog(data::IProjectRepository& repo, QWidget* pa
     filter->addStretch();
     root->addLayout(filter);
 
-    table_ = new QTableWidget(this);
+    table_ = new ElaTableWidget(this);  // Ela item 版表格(继承 QTableWidget)，直替
     table_->setColumnCount(8);
     table_->setHorizontalHeaderLabels(QStringList{
         QStringLiteral("序号"), QStringLiteral("项目名称"), QStringLiteral("项目编号"),

src/app/panels/ObjectTreePanel.cpp

@@ -1,13 +1,15 @@
 #include "panels/ObjectTreePanel.hpp"
 
-#include <QColor>
 #include <QLabel>
+#include <QModelIndex>
 #include <QSignalBlocker>
-#include <QTreeWidget>
-#include <QTreeWidgetItem>
+#include <QStandardItem>
+#include <QStandardItemModel>
+#include <QTreeView>
 #include <QVBoxLayout>
 
-#include "Glyphs.hpp"
+#include <ElaTreeView.h>
+
 #include "Theme.hpp"
 #include "dto/NavDto.hpp"
 
@@ -17,15 +19,16 @@ namespace {
 // TM 节点把 tmObjectId 存在该角色；GS/项目根节点为空。
 constexpr int kRoleTmId = Qt::UserRole + 2;
 
-void addNodes(QTreeWidgetItem* parent, const std::vector<data::dto::StructTreeNode>& nodes) {
+void addNodes(QStandardItem* parent, const std::vector<data::dto::StructTreeNode>& nodes) {
     for (const auto& n : nodes) {
-        auto* item = new QTreeWidgetItem(parent);
-        item->setText(0, QString::fromStdString(n.node.name));
+        auto* item = new QStandardItem(QString::fromStdString(n.node.name));
+        item->setEditable(false);
         if (n.isTm) {
-            item->setData(0, kRoleTmId, QString::fromStdString(n.node.id));
-            item->setFlags(item->flags() | Qt::ItemIsUserCheckable);
-            item->setCheckState(0, Qt::Unchecked);  // 真实数据渲染下一轮接入，默认不勾
+            item->setData(QString::fromStdString(n.node.id), kRoleTmId);
+            item->setCheckable(true);
+            item->setCheckState(Qt::Unchecked);  // 真实数据渲染下一轮接入，默认不勾
         }
+        parent->appendRow(item);
         addNodes(item, n.children);
     }
 }
@@ -36,19 +39,10 @@ ObjectTreePanel::ObjectTreePanel(QWidget* parent) : QWidget(parent) {
     lay->setContentsMargins(0, 0, 0, 0);
     lay->setSpacing(0);
 
-    tree_ = new QTreeWidget(this);
+    tree_ = new ElaTreeView(this);  // Fluent 树视图（自绘展开/折叠指示，随主题）
     tree_->setHeaderHidden(true);
-    {
-        const QString openArrow = writeChevronIcon(true, QColor("#8A93A3"));
-        const QString closedArrow = writeChevronIcon(false, QColor("#8A93A3"));
-        geopro::app::applyThemedStyleSheet(
-            tree_, QStringLiteral("QTreeView::branch { background: #FFFFFF; }"
-                                  "QTreeView::branch:has-children:!has-siblings:closed,"
-                                  "QTreeView::branch:closed:has-children:has-siblings { image: url(%1); }"
-                                  "QTreeView::branch:open:has-children:!has-siblings,"
-                                  "QTreeView::branch:open:has-children:has-siblings { image: url(%2); }")
-                       .arg(closedArrow, openArrow));
-    }
+    model_ = new QStandardItemModel(tree_);
+    tree_->setModel(model_);
     lay->addWidget(tree_, 1);
 
     hint_ = new QLabel(QStringLiteral("正在加载对象…"), this);
@@ -57,21 +51,22 @@ ObjectTreePanel::ObjectTreePanel(QWidget* parent) : QWidget(parent) {
     hint_->setVisible(false);
     lay->addWidget(hint_);
 
-    QObject::connect(tree_, &QTreeWidget::itemClicked, this, [this](QTreeWidgetItem* item, int) {
-        const QString tmId = item->data(0, kRoleTmId).toString();
+    // 单击 TM → tmClicked（按 index 取 tmId）。
+    QObject::connect(tree_, &QTreeView::clicked, this, [this](const QModelIndex& idx) {
+        const QString tmId = idx.data(kRoleTmId).toString();
         if (!tmId.isEmpty()) emit tmClicked(tmId);
     });
-    QObject::connect(tree_, &QTreeWidget::itemChanged, this, [this](QTreeWidgetItem* item, int) {
-        const QString tmId = item->data(0, kRoleTmId).toString();
-        if (!tmId.isEmpty())
-            emit tmCheckToggled(tmId, item->checkState(0) == Qt::Checked);
+    // 勾选变化 → tmCheckToggled。
+    QObject::connect(model_, &QStandardItemModel::itemChanged, this, [this](QStandardItem* item) {
+        const QString tmId = item->data(kRoleTmId).toString();
+        if (!tmId.isEmpty()) emit tmCheckToggled(tmId, item->checkState() == Qt::Checked);
     });
 }
 
 void ObjectTreePanel::setStructure(const QString& projectName,
                                    const std::vector<data::StructNode>& nodes) {
-    const QSignalBlocker block(tree_);  // 重建触发 itemChanged，先屏蔽
-    tree_->clear();
+    const QSignalBlocker block(model_);  // 重建触发 itemChanged，先屏蔽
+    model_->clear();
     const auto roots = data::dto::buildStructTree(nodes);
     if (roots.empty()) {
         showMessage(projectName.isEmpty() ? QStringLiteral("（暂无项目）")
@@ -80,12 +75,12 @@ void ObjectTreePanel::setStructure(const QString& projectName,
     }
     hint_->setVisible(false);
     tree_->setVisible(true);
-    addNodes(tree_->invisibleRootItem(), roots);  // 结构已含项目根节点，直接渲染
+    addNodes(model_->invisibleRootItem(), roots);  // 结构已含项目根节点，直接渲染
     tree_->expandAll();
 }
 
 void ObjectTreePanel::showMessage(const QString& message) {
-    tree_->clear();
+    model_->clear();
     tree_->setVisible(false);
     hint_->setText(message);
     hint_->setVisible(true);

src/app/panels/ObjectTreePanel.hpp

@@ -3,7 +3,8 @@
 #include <vector>
 #include "repo/RepoTypes.hpp"
 
-class QTreeWidget;
+class QTreeView;
+class QStandardItemModel;
 class QLabel;
 
 namespace geopro::app {
@@ -24,7 +25,8 @@ signals:
     void tmCheckToggled(const QString& tmObjectId, bool checked);
 
 private:
-    QTreeWidget* tree_ = nullptr;
+    QTreeView* tree_ = nullptr;            // ElaTreeView(继承 QTreeView)
+    QStandardItemModel* model_ = nullptr;  // 标准 model(Qt 自带)
     QLabel* hint_ = nullptr;
 };