Phase 5: TUI client (Bubbletea)

- cmd/tui/main.go: entry point with --server, --token, --version flags
- cmd/tui/config.go: config from ~/.config/dumpster/config.yaml or env vars
- cmd/tui/auth.go: login flow, session cookie management
- cmd/tui/api.go: HTTP client for servers, channels, messages, voice
- cmd/tui/model.go: root bubbletea model with state management
- cmd/tui/theme.go: Gruvbox dark lipgloss styles
- cmd/tui/servers.go: server bar with [D] style initials
- cmd/tui/channels.go: channel list with #text and 🔊 voice
- cmd/tui/chat.go: IRC-style message viewport with colored usernames
- cmd/tui/input.go: message input with > _ prompt
- cmd/tui/members.go: member list with ●/◐/○ status
- cmd/tui/ws.go: WebSocket client for real-time events
- cmd/tui/voice.go: voice state tracking and mute toggle
- cmd/tui/keys.go: vim-style keybindings (j/k, g/G, Tab, /, etc)
- cmd/tui/views.go: multi-pane layout rendering
- Makefile: added build-tui and run-tui targets
- go.mod/go.sum: added charmbracelet dependencies

cmd/tui/members.go

@@ -0,0 +1,88 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/charmbracelet/lipgloss"
+)
+
+// MemberEntry renders a single member in the member list.
+func MemberEntry(username string, status string) string {
+	var statusDot string
+	switch status {
+	case "online":
+		statusDot = StatusOnline.Render("●")
+	case "idle":
+		statusDot = StatusIdle.Render("◐")
+	default:
+		statusDot = StatusOffline.Render("○")
+	}
+
+	return fmt.Sprintf(" %s %s", statusDot, username)
+}
+
+// MemberList renders the member sidebar.
+func MemberList(user UserProfile, members []MemberEntryData, width, height int, visible bool) string {
+	if !visible {
+		return ""
+	}
+
+	var lines []string
+	lines = append(lines, CategoryStyle.Render("ONLINE"))
+
+	if user.Username != "" {
+		lines = append(lines, MemberEntry(
+			user.DisplayName,
+			"online",
+		))
+	}
+
+	for _, m := range members {
+		status := m.Status
+		if status == "" {
+			status = "offline"
+		}
+		lines = append(lines, MemberEntry(m.DisplayName, status))
+	}
+
+	if len(members) == 0 && user.Username != "" {
+		lines = append(lines, "")
+		lines = append(lines, HelpStyle.Render("  No other members"))
+	}
+
+	return MemberListStyle.
+		Width(width).
+		Height(height).
+		Render(strings.Join(lines, "\n"))
+}
+
+// MemberEntryData is a lightweight member representation.
+type MemberEntryData struct {
+	UserID      string
+	Username    string
+	DisplayName string
+	Status      string
+}
+
+// VoiceParticipants renders the voice participant list (used in voice channels).
+func VoiceParticipants(participants []VoiceParticipant, width int) string {
+	if len(participants) == 0 {
+		return ""
+	}
+
+	var lines []string
+	lines = append(lines, CategoryStyle.Render("VOICE"))
+
+	for _, p := range participants {
+		icon := "🔊"
+		if p.State != "connected" {
+			icon = "🔇"
+		}
+		lines = append(lines, fmt.Sprintf(" %s %s", icon, p.Username))
+	}
+
+	return lipgloss.NewStyle().
+		Width(width).
+		Render(strings.Join(lines, "\n"))
+}