Add /exit command

pkg/tui/commands/commands.go

@@ -31,6 +31,16 @@ type Item struct {
 
 func builtInSessionCommands() []Item {
 	return []Item{
+		{
+			ID:           "session.exit",
+			Label:        "Exit",
+			SlashCommand: "/exit",
+			Description:  "Exit the application",
+			Category:     "Session",
+			Execute: func() tea.Cmd {
+				return core.CmdHandler(messages.ExitSessionMsg{})
+			},
+		},
 		{
 			ID:           "session.new",
 			Label:        "New",

pkg/tui/messages/messages.go

@@ -3,6 +3,7 @@ package messages
 // Session command messages
 type (
 	NewSessionMsg             struct{}
+	ExitSessionMsg            struct{}
 	EvalSessionMsg            struct{ Filename string }
 	CompactSessionMsg         struct{}
 	CopySessionToClipboardMsg struct{}

pkg/tui/tui.go

@@ -214,6 +214,11 @@ func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		a.chatPage = updated.(chat.Page)
 		return a, cmd
 
+	case messages.ExitSessionMsg:
+		return a, core.CmdHandler(dialog.OpenDialogMsg{
+			Model: dialog.NewExitConfirmationDialog(),
+		})
+
 	case messages.NewSessionMsg:
 		a.application.NewSession()
 		sess := a.application.Session()