Initial commit: lottery project structure

Add core project files including:
- Client and server directories
- Backup script
- Package configuration
- Git ignore rules

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,15 @@
+# Logs
+*.log
+
+# Trained data (OCR)
+*.traineddata
+
+# Node modules
+node_modules/
+
+# Claude settings
+.claude/
+
+# OS files
+.DS_Store
+Thumbs.db