refactor(interaction): separate view and update logic into modular files

- Extract slug editing logic to slug.go (slugView/slugUpdate)
- Extract commands menu logic to commands.go (commandsView/commandsUpdate)
- Extract coming soon modal to coming_soon.go (comingSoonView/comingSoonUpdate)
- Extract main dashboard logic to dashboard.go (dashboardView/dashboardUpdate)
- Create model.go for shared model struct and helper functions
- Replace math/rand with crypto/rand for random subdomain generation
- Remove legacy TLS cipher suite configuration

session/interaction/commands.go

@@ -0,0 +1,83 @@
+package interaction
+
+import (
+	"strings"
+	"time"
+
+	"github.com/charmbracelet/bubbles/key"
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+func (m *model) commandsUpdate(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
+	var cmd tea.Cmd
+
+	switch {
+	case key.Matches(msg, m.keymap.quit):
+		m.showingCommands = false
+		return m, tea.Batch(tea.ClearScreen, textinput.Blink)
+	case msg.String() == "enter":
+		selectedItem := m.commandList.SelectedItem()
+		if selectedItem != nil {
+			item := selectedItem.(commandItem)
+			if item.name == "slug" {
+				m.showingCommands = false
+				m.editingSlug = true
+				m.slugInput.SetValue(m.interaction.slug.String())
+				m.slugInput.Focus()
+				return m, tea.Batch(tea.ClearScreen, textinput.Blink)
+			} else if item.name == "tunnel-type" {
+				m.showingCommands = false
+				m.showingComingSoon = true
+				return m, tea.Batch(tickCmd(5*time.Second), tea.ClearScreen, textinput.Blink)
+			}
+			m.showingCommands = false
+			return m, nil
+		}
+	case msg.String() == "esc":
+		m.showingCommands = false
+		return m, tea.Batch(tea.ClearScreen, textinput.Blink)
+	}
+	m.commandList, cmd = m.commandList.Update(msg)
+	return m, cmd
+}
+
+func (m *model) commandsView() string {
+	isCompact := shouldUseCompactLayout(m.width, 60)
+
+	titleStyle := lipgloss.NewStyle().
+		Bold(true).
+		Foreground(lipgloss.Color("#7D56F4")).
+		PaddingTop(1).
+		PaddingBottom(1)
+
+	helpStyle := lipgloss.NewStyle().
+		Foreground(lipgloss.Color("#666666")).
+		Italic(true).
+		MarginTop(1)
+
+	var b strings.Builder
+	b.WriteString("\n")
+
+	var title string
+	if shouldUseCompactLayout(m.width, 40) {
+		title = "Commands"
+	} else {
+		title = "⚡ Commands"
+	}
+	b.WriteString(titleStyle.Render(title))
+	b.WriteString("\n\n")
+	b.WriteString(m.commandList.View())
+	b.WriteString("\n")
+
+	var helpText string
+	if isCompact {
+		helpText = "↑/↓ Nav • Enter Select • Esc Cancel"
+	} else {
+		helpText = "↑/↓ Navigate • Enter Select • Esc Cancel"
+	}
+	b.WriteString(helpStyle.Render(helpText))
+
+	return b.String()
+}