feat(tui): rebuild TUI around hardware diagnostics (Health Check + two-column layout)

- Replace 12-item flat menu with 4-item main menu: Health Check, Export support bundle, Settings, Exit
- Add Health Check screen (Lenovo-style): per-component checkboxes (GPU/MEM/DISK/CPU), Quick/Standard/Express modes, Run All, letter hotkeys G/M/S/C/R/A/1/2/3
- Add two-column main screen: left = menu, right = hardware panel with colored PASS/FAIL/CANCEL/N/A status per component; Tab/→ switches focus, Enter opens component detail
- Add app.LoadHardwarePanel() + ComponentDetailResult() reading audit JSON and SAT summary.txt files
- Move Network/Services/audit actions into Settings submenu
- Export: support bundle only (remove separate audit JSON export)
- Delete screen_acceptance.go; add screen_health_check.go, screen_settings.go, app/panel.go
- Add BMC + CPU stress-ng tests to backlog
- Update bible submodule
- Rewrite tui_test.go for new screen/action structure

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

audit/internal/tui/screen_main.go

@@ -6,44 +6,9 @@ import (
 
 func (m model) handleMainMenu() (tea.Model, tea.Cmd) {
 	switch m.cursor {
-	case 0:
-		m.screen = screenNetwork
-		m.cursor = 0
-		return m, nil
-	case 1:
-		m.busy = true
-		m.busyTitle = "Services"
-		return m, func() tea.Msg {
-			services, err := m.app.ListBeeServices()
-			return servicesMsg{services: services, err: err}
-		}
-	case 2:
-		m.screen = screenAcceptance
-		m.cursor = 0
-		return m, nil
-	case 3:
-		m.busy = true
-		m.busyTitle = "Run audit"
-		return m, func() tea.Msg {
-			result, err := m.app.RunAuditNow(m.runtimeMode)
-			return resultMsg{title: result.Title, body: result.Body, err: err, back: screenMain}
-		}
-	case 4:
-		m.busy = true
-		m.busyTitle = "Run self-check"
-		return m, func() tea.Msg {
-			result, err := m.app.RunRuntimePreflightResult()
-			return resultMsg{title: result.Title, body: result.Body, err: err, back: screenMain}
-		}
-	case 5:
-		m.pendingAction = actionExportAudit
-		m.busy = true
-		m.busyTitle = "Export audit"
-		return m, func() tea.Msg {
-			targets, err := m.app.ListRemovableTargets()
-			return exportTargetsMsg{targets: targets, err: err}
-		}
-	case 6:
+	case 0: // Health Check
+		return m.enterHealthCheck()
+	case 1: // Export support bundle
 		m.pendingAction = actionExportBundle
 		m.busy = true
 		m.busyTitle = "Export support bundle"
@@ -51,35 +16,11 @@ func (m model) handleMainMenu() (tea.Model, tea.Cmd) {
 			targets, err := m.app.ListRemovableTargets()
 			return exportTargetsMsg{targets: targets, err: err}
 		}
-	case 7:
-		m.busy = true
-		m.busyTitle = "Required tools"
-		return m, func() tea.Msg {
-			result := m.app.ToolCheckResult([]string{"dmidecode", "smartctl", "nvme", "ipmitool", "lspci", "ethtool", "bee", "nvidia-smi", "bee-gpu-stress", "memtester", "dhclient", "lsblk", "mount"})
-			return resultMsg{title: result.Title, body: result.Body, back: screenMain}
-		}
-	case 8:
-		m.busy = true
-		m.busyTitle = "Health summary"
-		return m, func() tea.Msg {
-			result := m.app.HealthSummaryResult()
-			return resultMsg{title: result.Title, body: result.Body, back: screenMain}
-		}
-	case 9:
-		m.busy = true
-		m.busyTitle = "Runtime issues"
-		return m, func() tea.Msg {
-			result := m.app.RuntimeHealthResult()
-			return resultMsg{title: result.Title, body: result.Body, back: screenMain}
-		}
-	case 10:
-		m.busy = true
-		m.busyTitle = "Audit logs"
-		return m, func() tea.Msg {
-			result := m.app.AuditLogTailResult()
-			return resultMsg{title: result.Title, body: result.Body, back: screenMain}
-		}
-	case 11:
+	case 2: // Settings
+		m.screen = screenSettings
+		m.cursor = 0
+		return m, nil
+	case 3: // Exit
 		return m, tea.Quit
 	}
 	return m, nil