feat(webui): replace TUI with full web UI + local openbox desktop

- Remove audit/internal/tui/ (~3000 LOC, bubbletea/lipgloss/reanimator deps)
- Add /api/* REST+SSE endpoints: audit, SAT (nvidia/memory/storage/cpu),
  services, network, export, tools, live metrics stream
- Add async job manager with SSE streaming for long-running operations
- Add platform.SampleLiveMetrics() for live fan/temp/power/GPU polling
- Add multi-page web UI (vanilla JS): Dashboard, Metrics charts, Tests,
  Burn-in, Network, Services, Export, Tools
- Add bee-desktop.service: openbox + Xorg + Chromium opening http://localhost/
- Add openbox/tint2/xorg/xinit/xterm/chromium to ISO package list
- Update .profile, bee.sh, and bible-local docs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

audit/internal/tui/screen_export.go

@@ -1,19 +0,0 @@
-package tui
-
-import tea "github.com/charmbracelet/bubbletea"
-
-func (m model) handleExportTargetsMenu() (tea.Model, tea.Cmd) {
-	if len(m.targets) == 0 {
-		return m, resultCmd(
-			"Export support bundle",
-			"No writable removable filesystems found.\n\nRead-only or boot media are hidden from this list.",
-			nil,
-			screenMain,
-		)
-	}
-	target := m.targets[m.cursor]
-	m.selectedTarget = &target
-	m.pendingAction = actionExportBundle
-	m.screen = screenConfirm
-	return m, nil
-}