Add chunked upload support for large video files up to 10GB

- Increased max file size from 500MB to 10GB
- Created chunkedUploadService.js for managing chunked uploads
- Added chunked upload API endpoints (init, chunk, complete, status, abort)
- Added frontend chunked upload methods to photos.service.ts
- Files >100MB automatically use chunked uploads
- 10MB chunk size for reliable transfers
- Auto-cleanup of expired uploads after 24 hours
- Updated README with 10GB limit and nginx configuration example

README.md

@@ -147,10 +147,19 @@ When enabling video uploads, consider these additional resources:
 
 **Technical Notes:**
 - FFmpeg is bundled via npm (`@ffmpeg-installer/ffmpeg`) - no system installation required
-- Maximum upload size: 500MB per video file
+- Maximum upload size: **10GB per video file**
+- Chunked upload support for files >100MB (resumable uploads)
 - Supported formats: MP4, WebM, MOV, AVI
 - Video thumbnails are automatically generated from the first few seconds
 
+**For Nginx/Reverse Proxy:**
+If using Nginx, increase the client max body size:
+```nginx
+client_max_body_size 10G;
+proxy_read_timeout 3600;
+proxy_send_timeout 3600;
+```
+
 ## 🤝 Contributing
 
 We love contributions! PicPeak is built by photographers, for photographers. Whether you're fixing bugs, adding features, or improving documentation, your help is welcome.