feat: add theme-aware logo support via optional sourceDark configuration (#6866)

* Initial plan

* Initial exploration and setup

Co-authored-by: aonoa <32682251+aonoa@users.noreply.github.com>

* Add support for separate light and dark theme logos

Co-authored-by: aonoa <32682251+aonoa@users.noreply.github.com>

* Update documentation with dark theme logo configuration

Co-authored-by: aonoa <32682251+aonoa@users.noreply.github.com>

* feat: Add theme-aware logo support for authentication/login page

Co-authored-by: aonoa <32682251+aonoa@users.noreply.github.com>

* revert: .npmrc

Signed-off-by: aonoa <1991849113@qq.com>

---------

Signed-off-by: aonoa <1991849113@qq.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: aonoa <32682251+aonoa@users.noreply.github.com>
Co-authored-by: Li Kui <90845831+likui628@users.noreply.github.com>
Co-authored-by: aonoa <1991849113@qq.com>

docs/src/en/guide/essentials/settings.md

@@ -261,6 +261,7 @@ const defaultPreferences: Preferences = {
     enable: true,
     fit: 'contain',
     source: 'https://unpkg.com/@vbenjs/static-source@0.1.7/source/logo-v1.webp',
+    // sourceDark: 'https://unpkg.com/@vbenjs/static-source@0.1.7/source/logo-dark.webp', // Optional: Dark theme logo
   },
   navigation: {
     accordion: true,
@@ -457,6 +458,8 @@ interface LogoPreferences {
   fit: 'contain' | 'cover' | 'fill' | 'none' | 'scale-down';
   /** Logo URL */
   source: string;
+  /** Dark theme logo URL (optional, if not set, use source) */
+  sourceDark?: string;
 }
 
 interface NavigationPreferences {

docs/src/guide/essentials/settings.md

@@ -260,6 +260,7 @@ const defaultPreferences: Preferences = {
     enable: true,
     fit: 'contain',
     source: 'https://unpkg.com/@vbenjs/static-source@0.1.7/source/logo-v1.webp',
+    // sourceDark: 'https://unpkg.com/@vbenjs/static-source@0.1.7/source/logo-dark.webp', // 可选：暗色主题logo
   },
   navigation: {
     accordion: true,
@@ -457,6 +458,8 @@ interface LogoPreferences {
   fit: 'contain' | 'cover' | 'fill' | 'none' | 'scale-down';
   /** logo地址 */
   source: string;
+  /** 暗色主题logo地址 (可选，若不设置则使用 source) */
+  sourceDark?: string;
 }
 
 interface NavigationPreferences {