Fix: avoid raw terminal after ctrl+c exit

main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"github.com/gdamore/tcell/v2"
 	"github.com/rivo/tview"
 )
 
@@ -19,9 +20,23 @@ var (
 	toolCollapsed         = true
 	statusLineTempl       = "help (F12) | chat: [orange:-:b]%s[-:-:-] (F1) | [%s:-:b]tool use[-:-:-] (ctrl+k) | model: [%s:-:b]%s[-:-:-] (ctrl+l) | [%s:-:b]skip LLM resp[-:-:-] (F10) | API: [orange:-:b]%s[-:-:-] (ctrl+v)\nwriting as: [orange:-:b]%s[-:-:-] (ctrl+q) | bot will write as [orange:-:b]%s[-:-:-] (ctrl+x)"
 	focusSwitcher         = map[tview.Primitive]tview.Primitive{}
+	app               *tview.Application
 )
 
 func main() {
+	app.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+		if event.Key() == tcell.KeyCtrlC {
+			logger.Info("caught Ctrl+C via tcell event")
+			go func() {
+				if err := pwShutDown(); err != nil {
+					logger.Error("shutdown failed", "err", err)
+				}
+				app.Stop()
+			}()
+			return nil // swallow the event
+		}
+		return event
+	})
 	pages.AddPage("main", flex, true, true)
 	if err := app.SetRoot(pages,
 		true).EnableMouse(cfg.EnableMouse).EnablePaste(true).Run(); err != nil {