feat: 统一管理端弹窗与内容区交互样式

- 收敛管理端公共 Modal 链路，新增表单弹窗与普通内容弹窗包装\n- 迁移 Bot、知识库、插件、工作流、资源、MCP、数据中枢与系统管理页面级弹窗\n- 统一内容区工具栏、列表容器、导航与顶部按钮的视觉密度和交互节奏

easyflow-ui-admin/packages/@core/preferences/src/config.ts

@@ -37,7 +37,7 @@ const defaultPreferences: Preferences = {
     enable: true,
     hideOnlyOne: false,
     showHome: false,
-    showIcon: true,
+    showIcon: false,
     styleType: 'normal',
   },
   copyright: {
@@ -56,7 +56,7 @@ const defaultPreferences: Preferences = {
   },
   header: {
     enable: true,
-    height: 50,
+    height: 56,
     hidden: false,
     menuAlign: 'start',
     mode: 'fixed',
@@ -99,7 +99,7 @@ const defaultPreferences: Preferences = {
   tabbar: {
     draggable: true,
     enable: true,
-    height: 38,
+    height: 32,
     keepAlive: true,
     maxCount: 0,
     middleClickToClose: false,
@@ -107,7 +107,7 @@ const defaultPreferences: Preferences = {
     showIcon: true,
     showMaximize: true,
     showMore: true,
-    styleType: 'chrome',
+    styleType: 'plain',
     wheelable: true,
   },
   theme: {