##Changes 1)Add FileBrowserController for file operations (upload, download, delete, create folders) 2)Implement ContainerFileService for container file system interactions and Docker exec operations 3)Add ContainerAccessMiddleware for security and access control validation 4)Create FileBrowser Livewire component for interactive UI with real-time file management 5)Add FileBrowserLog model for audit trail and file operation tracking 6)Implement comprehensive HTTP request validation classes for file operations 7)Add frontend JavaScript components for drag-and-drop file upload functionality 8)Create responsive file browser interface with folder navigation and file preview 9)Add file browser integration to application heading and navigation 10)Update API and web routes for file browser endpoints 11)Register ContainerAccessMiddleware in HTTP Kernel 12)Add comprehensive test coverage for ContainerFileService and FileBrowser functionality

##Issues fix #6519

/claim #6519