feat(settings): compact custom gateway model panel

app/gui/tabs/settings.py

@@ -371,10 +371,6 @@ class SettingsTab(QWidget):
             "生成网关",
             "settingsAiModelSectionTitle",
         )
-        self.model_detail_section_title = self._section_title(
-            "模型详情",
-            "settingsModelDetailSectionTitle",
-        )
         self.generation_section_title = self._section_title(
             "角色与生成参数",
             "settingsGenerationSectionTitle",
@@ -391,8 +387,7 @@ class SettingsTab(QWidget):
         panel_layout.addWidget(self.gateway_selector)
         panel_layout.addSpacing(8)
         panel_layout.addWidget(self.model_picker_panel)
-        panel_layout.addSpacing(14)
-        panel_layout.addWidget(self.model_detail_section_title)
+        panel_layout.addSpacing(8)
         panel_layout.addWidget(self.model_detail_panel)
         panel_layout.addWidget(self.cmhub_panel)
         panel_layout.addSpacing(18)
@@ -645,7 +640,6 @@ class SettingsTab(QWidget):
         self.backend_combo.setVisible(False)
         is_direct = backend == "direct"
         self.model_picker_panel.setVisible(is_direct)
-        self.model_detail_section_title.setVisible(is_direct)
         self.model_detail_panel.setVisible(is_direct)
         self.direct_role_panel.setVisible(is_direct)
         self.cmhub_panel.setVisible(not is_direct)