- Modified `getSession` to throw errors instead of using `res.sendError`, ensuring compatibility with HTTP and WebSocket contexts
- Updated HTTP routes to use `initApi` middleware for consistent error handling with `res.sendError`
- Enhanced WebSocket routes to catch and send errors via WebSocket messages
- Improved SFTP error handling with better logging and session cleanup
- Added input validation and try-catch blocks to prevent unhandled errors
- Fixed `Error: No response from server` by ensuring proper session management
