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 <[email protected]>

backend/src/routes/gallery.js

@@ -301,6 +301,44 @@ router.get('/:slug/download-all', verifyGalleryAccess, async (req, res) => {
   }
 });
 
+// View single photo (with watermark if enabled)
+router.get('/:slug/photo/:photoId', verifyGalleryAccess, async (req, res) => {
+  try {
+    const { photoId } = req.params;
+    
+    const photo = await db('photos')
+      .where({ id: photoId, event_id: req.event.id })
+      .first();
+    
+    if (!photo) {
+      return res.status(404).json({ error: 'Photo not found' });
+    }
+    
+    const filePath = path.join(getStoragePath(), 'events/active', photo.path);
+    
+    // Get watermark settings
+    const watermarkSettings = await watermarkService.getWatermarkSettings();
+    
+    if (watermarkSettings && watermarkSettings.enabled) {
+      // Apply watermark and send
+      const watermarkedBuffer = await watermarkService.applyWatermark(filePath, watermarkSettings);
+      
+      res.set({
+        'Content-Type': photo.mime_type || 'image/jpeg',
+        'Cache-Control': 'public, max-age=3600' // Cache for 1 hour
+      });
+      
+      res.send(watermarkedBuffer);
+    } else {
+      // Send original file
+      res.sendFile(filePath);
+    }
+  } catch (error) {
+    console.error('Error serving photo:', error);
+    res.status(500).json({ error: 'Failed to serve photo' });
+  }
+});
+
 // Get photo stats
 router.get('/:slug/stats', verifyGalleryAccess, async (req, res) => {
   try {