Fix general settings route and req.user references

- Update frontend settings service to use correct /api/admin/settings/general route
- Fix all req.user to req.admin references in adminSettings.js
- Ensures settings can be saved without authentication errors

frontend/src/services/gallery.service.ts

@@ -2,9 +2,16 @@ import { api } from '../config/api';
 import type { GalleryInfo, GalleryData, GalleryStats } from '../types';
 
 export const galleryService = {
+  // Verify share token
+  async verifyToken(slug: string, token: string): Promise<{ valid: boolean }> {
+    const response = await api.get<{ valid: boolean }>(`/api/gallery/${slug}/verify-token/${token}`);
+    return response.data;
+  },
+
   // Get basic gallery info (no auth required)
-  async getGalleryInfo(slug: string): Promise<GalleryInfo> {
-    const response = await api.get<GalleryInfo>(`/api/gallery/${slug}/info`);
+  async getGalleryInfo(slug: string, token?: string): Promise<GalleryInfo> {
+    const params = token ? { token } : {};
+    const response = await api.get<GalleryInfo>(`/api/gallery/${slug}/info`, { params });
     return response.data;
   },