feat: 更新管理端品牌 Logo 体系

- 替换主标、暗色主标、收起图标、单色版与 favicon 资源

- 新增暗色收起图标接入能力，补齐公共 logo 配置回退链路

- 增加品牌预览页，集中展示浅色、黑场和应用场景效果

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

@@ -68,6 +68,7 @@ const defaultPreferences: Preferences = {
     source: '/logo.svg',
     sourceDark: '/logoDark.svg',
     sourceMini: '/logoMini.svg',
+    sourceMiniDark: '/logoMiniDark.svg',
   },
   navigation: {
     accordion: true,

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

@@ -150,6 +150,8 @@ interface LogoPreferences {
   sourceDark?: string;
   /** 侧边栏收起logo地址 (可选，若不设置则使用 source) */
   sourceMini?: string;
+  /** 暗色主题下侧边栏收起logo地址 (可选，若不设置则使用 sourceMini/sourceDark/source) */
+  sourceMiniDark?: string;
 }
 
 interface NavigationPreferences {

easyflow-ui-admin/packages/@core/ui-kit/shadcn-ui/src/components/logo/logo.vue

@@ -34,6 +34,10 @@ interface Props {
    * @zh_CN 侧边栏收起时 Logo 图标 (可选，若不设置则使用 src)
    */
   srcMini?: string;
+  /**
+   * @zh_CN 暗色主题下侧边栏收起时 Logo 图标 (可选，若不设置则按 srcMini/srcDark/src 回退)
+   */
+  srcMiniDark?: string;
   /**
    * @zh_CN Logo 文本
    */
@@ -55,6 +59,7 @@ const props = withDefaults(defineProps<Props>(), {
   src: '',
   srcDark: '',
   srcMini: '',
+  srcMiniDark: '',
   theme: 'light',
   fit: 'cover',
 });
@@ -64,6 +69,9 @@ const props = withDefaults(defineProps<Props>(), {
  */
 const logoSrc = computed(() => {
   if (props.collapsed) {
+    if (props.theme === 'dark' && props.srcMiniDark) {
+      return props.srcMiniDark;
+    }
     return props.srcMini;
   }
   // 如果是暗色主题且提供了 srcDark，则使用暗色主题的 logo

easyflow-ui-admin/packages/effects/layouts/src/basic/layout.vue

@@ -261,6 +261,13 @@ const headerSlots = computed(() => {
         :src="preferences.logo.source"
         :src-dark="preferences.logo.sourceDark ?? preferences.logo.source ?? ''"
         :src-mini="preferences.logo.sourceMini ?? preferences.logo.source ?? ''"
+        :src-mini-dark="
+          preferences.logo.sourceMiniDark ??
+          preferences.logo.sourceMini ??
+          preferences.logo.sourceDark ??
+          preferences.logo.source ??
+          ''
+        "
         :text="preferences.app.name ?? ''"
         :theme="showHeaderNav ? headerTheme : theme"
         @click="clickLogo"
@@ -355,6 +362,13 @@ const headerSlots = computed(() => {
         :src="preferences.logo.source"
         :src-dark="preferences.logo.sourceDark ?? preferences.logo.source ?? ''"
         :src-mini="preferences.logo.sourceMini ?? preferences.logo.source ?? ''"
+        :src-mini-dark="
+          preferences.logo.sourceMiniDark ??
+          preferences.logo.sourceMini ??
+          preferences.logo.sourceDark ??
+          preferences.logo.source ??
+          ''
+        "
         :text="preferences.app.name ?? ''"
         :theme="theme"
       >