refactor: rename project from wedding-photo-sharing to PicPeak

- Update Docker image names and network configurations
- Rename package.json project names to picpeak-backend/frontend
- Update CI/CD configurations (Drone CI and GitHub Actions)
- Update documentation and setup scripts
- Update application branding in source code
- Change default database name to picpeak
- Update PM2 ecosystem config

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/utils/photoUrl.ts

@@ -0,0 +1,28 @@
+import { Photo } from '../types';
+
+interface PhotoUrlOptions {
+  slug: string;
+  photo: Photo;
+  watermarkEnabled?: boolean;
+  token?: string;
+}
+
+/**
+ * Get the appropriate URL for a photo, using watermarked endpoint if enabled
+ */
+export function getPhotoUrl({ slug, photo, watermarkEnabled = false, token }: PhotoUrlOptions): string {
+  if (watermarkEnabled && token) {
+    // Use the watermarked photo endpoint
+    return `/api/gallery/${slug}/photo/${photo.id}`;
+  }
+  
+  // Use the static photo URL
+  return photo.url;
+}
+
+/**
+ * Get the download URL for a photo
+ */
+export function getPhotoDownloadUrl(slug: string, photoId: number): string {
+  return `/api/gallery/${slug}/download/${photoId}`;
+}