Feature Request: Add Support for Executing SQL from Files via -f Flag

Feature Request: Add Support for Executing SQL from Files via -f Flag: a task in LegoFlow-SWE (Harbor dataset). Current Behavior dft currently only supports an interactive TUI mode – it launches a Text User Interface by default and does not provide a non‑interactive Command for running SQL…

The task

**Current Behavior** `dft` currently only supports an interactive TUI mode – it launches a Text User Interface by default and does not provide a non‑interactive `Command` for running SQL scripts. There is no built‑in way to execute SQL commands stored in files from the command line.

Part of Lego-X/LegoFlow-SWE.