da9c6e9ba0
`crates/tui/src/modules/` was never registered with `mod modules;` in the binary and nothing in the workspace called `run_deepseek_chat` / `run_official_chat`. The file is a 23 KB text-REPL workflow from a much earlier iteration of the project — superseded by the actual TUI runtime in `crates/tui/src/tui/` long ago, but never deleted. Removing it cuts ~580 lines of unreachable code and 44 `println!` calls from the workspace audit, with zero behavior change (the compiler confirms nothing imports from this path).