- Introduce “Ctrl+C twice” shortcut for quitting the application and display corresponding help line.
- Rename and clarify session‑related commands (`:session save`) and add short aliases (`:w[!]`, `:q[!]`, `:wq[!]`) with updated help entries.
- Adjust quit help text to remove `:q, :quit` redundancy and replace with the new quick‑exit hint.
- Update UI key hint to show only “Esc” for cancel actions.
- Implement double‑Ctrl+C detection in `ChatApp` using `DOUBLE_CTRL_C_WINDOW`, track `last_ctrl_c`, reset on other keys, and show status messages prompting the second press.
- Minor wording tweaks in help dialogs and README to reflect the new command syntax and quick‑exit behavior.
vikingowl
58dd6f3efa