Initial commit: Info-Beamer Streaming Channel System

- Complete Flask web application for digital signage management
- Streaming channels for organized content delivery
- User authentication with admin/user roles
- Bootstrap UI with light/dark theme support
- File upload and management system
- Activity logging and monitoring
- API endpoints for Info-Beamer device integration
- Database models for channels, content, users, and activity logs

.gitignore

@@ -0,0 +1,22 @@
+# Python
+__pycache__/
+*.pyc
+.venv/
+venv/
+
+# Database
+*.db
+
+# Uploads
+uploads/
+
+# IDE
+.vscode/
+.idea/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log