Add keyboard shortcut discoverability hints on each screen

internal/tui/screens/list_go_append.txt

@@ -0,0 +1,220 @@
+	lastUpdatedText := lipgloss.NewStyle().
+		Foreground(lipgloss.Color("241")).
+		Render("Last updated: " + timeAgo)
+
+	// Add keyboard shortcuts help
+	helpText := lipgloss.NewStyle().
+		Foreground(lipgloss.Color("63")).
+		MarginTop(1).
+		Render("Shortcuts: [?/h] Help • [a] Add • [R] Restore • [r] Refresh • [Q] QR Code • [/] Search • [1-4] Sort • [Enter] Details • [q] Quit")
+
+	return breadcrumb + "\n" + s.search.View() + "\n" + s.table.View() + "\n" + lastUpdatedText + "\n" + helpText
+}
+
+// formatDuration returns a human-readable string for the duration
+func formatDuration(d time.Duration) string {
+	if d < time.Minute {
+		return "just now"
+	}
+	if d < time.Hour {
+		return fmt.Sprintf("%d min ago", int(d.Minutes()))
+	}
+	return fmt.Sprintf("%d hr ago", int(d.Hours()))
+}
+
+// loadClients loads clients from wireguard config
+func (s *ListScreen) loadClients() tea.Msg {
+	clients, err := wireguard.ListClients()
+	if err != nil {
+		return ErrMsg{Err: err}
+	}
+
+	// Get status for each client
+	clientsWithStatus := make([]ClientWithStatus, len(clients))
+	for i, client := range clients {
+		status, err := wireguard.GetClientStatus(client.PublicKey)
+		if err != nil {
+			status = wireguard.StatusDisconnected
+		}
+		clientsWithStatus[i] = ClientWithStatus{
+			Client: client,
+			Status: status,
+		}
+	}
+
+	return clientsLoadedMsg{clients: clientsWithStatus}
+}
+
+// applyFilter applies the current search filter to clients
+func (s *ListScreen) applyFilter() {
+	// Convert clients to ClientData for filtering
+	clientData := make([]components.ClientData, len(s.clients))
+	for i, cws := range s.clients {
+		clientData[i] = components.ClientData{
+			Name:   cws.Client.Name,
+			IPv4:   cws.Client.IPv4,
+			IPv6:   cws.Client.IPv6,
+			Status: cws.Status,
+		}
+	}
+
+	// Filter clients
+	filteredData := s.search.Filter(clientData)
+
+	// Convert back to ClientWithStatus
+	s.filtered = make([]ClientWithStatus, len(filteredData))
+	for i, cd := range filteredData {
+		// Find the matching client
+		for _, cws := range s.clients {
+			if cws.Client.Name == cd.Name {
+				s.filtered[i] = cws
+				break
+			}
+		}
+	}
+
+	// Rebuild table with filtered clients
+	s.buildTable()
+}
+
+// formatStatusWithIcon formats the status with a colored circle icon
+func (s *ListScreen) formatStatusWithIcon(status string) string {
+	if status == wireguard.StatusConnected {
+		return lipgloss.NewStyle().Foreground(lipgloss.Color("46")).Render("●") + " " + status
+	}
+	return lipgloss.NewStyle().Foreground(lipgloss.Color("196")).Render("●") + " " + status
+}
+
+// buildTable creates and configures the table
+func (s *ListScreen) buildTable() {
+	columns := []table.Column{
+		{Title: "Name", Width: 20},
+		{Title: "IPv4", Width: 15},
+		{Title: "IPv6", Width: 35},
+		{Title: "Status", Width: 14},
+	}
+
+	// Use filtered clients if search is active, otherwise use all clients
+	displayClients := s.filtered
+	if !s.search.IsActive() {
+		displayClients = s.clients
+	}
+
+	var rows []table.Row
+	for _, cws := range displayClients {
+		statusText := s.formatStatusWithIcon(cws.Status)
+		row := table.Row{
+			cws.Client.Name,
+			cws.Client.IPv4,
+			cws.Client.IPv6,
+			statusText,
+		}
+		rows = append(rows, row)
+	}
+
+	// Sort rows based on current sort settings
+	s.sortRows(rows)
+
+	// Determine table height
+	tableHeight := len(rows) + 2 // Header + rows
+	if tableHeight < 5 {
+		tableHeight = 5
+	}
+
+	s.table = table.New(
+		table.WithColumns(columns),
+		table.WithRows(rows),
+		table.WithFocused(true),
+		table.WithHeight(tableHeight),
+	)
+
+	// Apply styles
+	s.setTableStyles()
+}
+
+// setTableStyles applies styling to the table
+func (s *ListScreen) setTableStyles() {
+	styles := table.DefaultStyles()
+	styles.Header = styles.Header.
+		BorderStyle(lipgloss.NormalBorder()).
+		BorderForeground(lipgloss.Color("240")).
+		BorderBottom(true).
+		Bold(true)
+	styles.Selected = styles.Selected.
+		Foreground(lipgloss.Color("229")).
+		Background(lipgloss.Color("57")).
+		Bold(false)
+	s.table.SetStyles(styles)
+}
+
+// sortRows sorts the rows based on the current sort settings
+func (s *ListScreen) sortRows(rows []table.Row) {
+	colIndex := s.getColumnIndex(s.sortedBy)
+
+	sort.Slice(rows, func(i, j int) bool {
+		var valI, valJ string
+		if colIndex < len(rows[i]) {
+			valI = rows[i][colIndex]
+		}
+		if colIndex < len(rows[j]) {
+			valJ = rows[j][colIndex]
+		}
+
+		if s.ascending {
+			return strings.ToLower(valI) < strings.ToLower(valJ)
+		}
+		return strings.ToLower(valI) > strings.ToLower(valJ)
+	})
+}
+
+// sortByColumn changes the sort column
+func (s *ListScreen) sortByColumn(col string) {
+	sortedBy := "Name"
+	switch col {
+	case "1":
+		sortedBy = "Name"
+	case "2":
+		sortedBy = "IPv4"
+	case "3":
+		sortedBy = "IPv6"
+	case "4":
+		sortedBy = "Status"
+	}
+
+	// Toggle direction if clicking same column
+	if s.sortedBy == sortedBy {
+		s.ascending = !s.ascending
+	} else {
+		s.sortedBy = sortedBy
+		s.ascending = true
+	}
+
+	s.buildTable()
+}
+
+// getColumnIndex returns the index of a column by name
+func (s *ListScreen) getColumnIndex(name string) int {
+	switch name {
+	case "Name":
+		return 0
+	case "IPv4":
+		return 1
+	case "IPv6":
+		return 2
+	case "Status":
+		return 3
+	}
+	return 0
+}
+
+// Messages
+
+// clientsLoadedMsg is sent when clients are loaded
+type clientsLoadedMsg struct {
+	clients []ClientWithStatus
+}
+
+// ErrMsg is sent when an error occurs
+type ErrMsg struct {
+	Err error
+}