support session delete to session browser

pkg/tui/dialog/session_browser.go

@@ -2,6 +2,7 @@ package dialog
 
 import (
 	"fmt"
+	"slices"
 	"strings"
 	"time"
 
@@ -29,6 +30,7 @@ type sessionBrowserKeyMap struct {
 	Star       key.Binding
 	FilterStar key.Binding
 	CopyID     key.Binding
+	Delete     key.Binding
 }
 
 // Session browser dialog dimension constants
@@ -82,6 +84,7 @@ func NewSessionBrowserDialog(sessions []session.Summary) Dialog {
 			Star:       key.NewBinding(key.WithKeys("ctrl+s")),
 			FilterStar: key.NewBinding(key.WithKeys("ctrl+f")),
 			CopyID:     key.NewBinding(key.WithKeys("ctrl+y")),
+			Delete:     key.NewBinding(key.WithKeys("ctrl+d")),
 		},
 		openedAt: time.Now(),
 	}
@@ -195,6 +198,17 @@ func (d *sessionBrowserDialog) Update(msg tea.Msg) (layout.Model, tea.Cmd) {
 			}
 			return d, nil
 
+		case key.Matches(msg, d.keyMap.Delete):
+			if d.selected >= 0 && d.selected < len(d.filtered) {
+				sessionID := d.filtered[d.selected].ID
+				d.sessions = slices.DeleteFunc(d.sessions, func(s session.Summary) bool {
+					return s.ID == sessionID
+				})
+				d.filterSessions()
+				return d, core.CmdHandler(messages.DeleteSessionMsg{SessionID: sessionID})
+			}
+			return d, nil
+
 		default:
 			var cmd tea.Cmd
 			d.textInput, cmd = d.textInput.Update(msg)
@@ -333,7 +347,8 @@ func (d *sessionBrowserDialog) View() string {
 		AddSeparator().
 		AddContent(idFooter).
 		AddSpace().
-		AddHelpKeys("↑/↓", "navigate", "ctrl+s", "star", "ctrl+f", filterDesc, "ctrl+y", "copy id", "enter", "load", "esc", "close").
+		AddHelpKeys("↑/↓", "navigate", "ctrl+s", "star", "ctrl+f", filterDesc, "ctrl+y", "copy id", "ctrl+d", "delete").
+		AddHelpKeys("enter", "load", "esc", "close").
 		Build()
 
 	return styles.DialogStyle.Width(dialogWidth).Render(content)

pkg/tui/handlers.go

@@ -150,6 +150,19 @@ func (m *appModel) handleRegenerateTitle() (tea.Model, tea.Cmd) {
 	return m, tea.Batch(spinnerCmd, notification.SuccessCmd("Regenerating title..."))
 }
 
+func (m *appModel) handleDeleteSession(sessionID string) (tea.Model, tea.Cmd) {
+	store := m.application.SessionStore()
+	if store == nil {
+		return m, notification.ErrorCmd("No session store configured")
+	}
+
+	if err := store.DeleteSession(context.Background(), sessionID); err != nil {
+		return m, notification.ErrorCmd("Failed to delete session: " + err.Error())
+	}
+
+	return m, notification.SuccessCmd("Session deleted.")
+}
+
 func isErrTitleGenerating(err error) bool {
 	return err != nil && err.Error() == app.ErrTitleGenerating.Error()
 }

pkg/tui/messages/session.go

@@ -59,6 +59,9 @@ type (
 	// ToggleSessionStarMsg toggles star on a session; empty ID means current session.
 	ToggleSessionStarMsg struct{ SessionID string }
 
+	// DeleteSessionMsg deletes a session by ID.
+	DeleteSessionMsg struct{ SessionID string }
+
 	// SetSessionTitleMsg sets the session title to specified value.
 	SetSessionTitleMsg struct{ Title string }
 

pkg/tui/tui.go

@@ -836,6 +836,9 @@ func (m *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		}
 		return m.handleToggleSessionStar(sessionID)
 
+	case messages.DeleteSessionMsg:
+		return m.handleDeleteSession(msg.SessionID)
+
 	case messages.SetSessionTitleMsg:
 		return m.handleSetSessionTitle(msg.Title)