fix: 修复管理端静态资源基础路径

- 统一内置品牌资源与空状态图片的 BASE_URL 解析

- 应用启动时自动归一化历史偏好里的内置资源路径

- 多个空状态组件改为复用公共资源地址工具

easyflow-ui-admin/app/src/preferences.ts

@@ -1,5 +1,7 @@
 import { defineOverridesPreferences } from '@easyflow/preferences';
 
+const assetBase = import.meta.env.BASE_URL || '/';
+
 /**
  * @description 项目配置文件
  * 只需要覆盖项目中的一部分配置，不需要的配置不用覆盖，会自动使用默认配置
@@ -11,9 +13,75 @@ export const overridesPreferences = defineOverridesPreferences({
     name: import.meta.env.VITE_APP_TITLE,
     accessMode: 'mixed',
   },
+  auth: {
+    sloganImage: `${assetBase}slogan.svg`,
+  },
+  logo: {
+    source: `${assetBase}logo.svg`,
+    sourceDark: `${assetBase}logoDark.svg`,
+    sourceMini: `${assetBase}logoMini.svg`,
+    sourceMiniDark: `${assetBase}logoMiniDark.svg`,
+  },
   transition: {
     enable: false,
     loading: false,
     progress: false,
   },
 });
+
+const BUILTIN_BRAND_ASSETS = new Map([
+  ['/logo.svg', 'logo.svg'],
+  ['/logoDark.svg', 'logoDark.svg'],
+  ['/logoMini.svg', 'logoMini.svg'],
+  ['/logoMiniDark.svg', 'logoMiniDark.svg'],
+  ['/slogan.svg', 'slogan.svg'],
+]);
+
+function normalizeBuiltinBrandAsset(path?: string) {
+  if (!path) {
+    return path;
+  }
+
+  const fileName = BUILTIN_BRAND_ASSETS.get(path);
+  if (!fileName) {
+    return path;
+  }
+
+  return `${assetBase}${fileName}`;
+}
+
+export function normalizeBrandAssetPreferences(preferences: {
+  auth?: { sloganImage?: string };
+  logo?: {
+    source?: string;
+    sourceDark?: string;
+    sourceMini?: string;
+    sourceMiniDark?: string;
+  };
+}) {
+  const normalized = {
+    auth: {
+      sloganImage: normalizeBuiltinBrandAsset(preferences.auth?.sloganImage),
+    },
+    logo: {
+      source: normalizeBuiltinBrandAsset(preferences.logo?.source),
+      sourceDark: normalizeBuiltinBrandAsset(preferences.logo?.sourceDark),
+      sourceMini: normalizeBuiltinBrandAsset(preferences.logo?.sourceMini),
+      sourceMiniDark: normalizeBuiltinBrandAsset(
+        preferences.logo?.sourceMiniDark,
+      ),
+    },
+  };
+
+  const changed =
+    normalized.auth.sloganImage !== preferences.auth?.sloganImage ||
+    normalized.logo.source !== preferences.logo?.source ||
+    normalized.logo.sourceDark !== preferences.logo?.sourceDark ||
+    normalized.logo.sourceMini !== preferences.logo?.sourceMini ||
+    normalized.logo.sourceMiniDark !== preferences.logo?.sourceMiniDark;
+
+  return {
+    changed,
+    normalized,
+  };
+}