feat(tui): NVIDIA SAT with nvtop, GPU selection, metrics and chart — v1.0.0

- TUI: duration presets (10m/1h/8h/24h), GPU multi-select checkboxes
- nvtop launched concurrently with SAT via tea.ExecProcess; can reopen or abort
- GPU metrics collected per-second during bee-gpu-stress (temp/usage/power/clock)
- Outputs: gpu-metrics.csv, gpu-metrics.html (offline SVG), gpu-metrics-term.txt
- Terminal chart: asciigraph-style line chart with box-drawing chars and ANSI colours
- AUDIT_VERSION bumped 0.1.1 → 1.0.0; nvtop added to ISO package list
- runtime-flows.md updated with full NVIDIA SAT TUI flow documentation

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

audit/internal/app/app.go

@@ -1,6 +1,7 @@
 package app
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"log/slog"
@@ -71,8 +72,10 @@ type toolManager interface {
 
 type satRunner interface {
 	RunNvidiaAcceptancePack(baseDir string) (string, error)
+	RunNvidiaAcceptancePackWithOptions(ctx context.Context, baseDir string, durationSec int, sizeMB int, gpuIndices []int) (string, error)
 	RunMemoryAcceptancePack(baseDir string) (string, error)
 	RunStorageAcceptancePack(baseDir string) (string, error)
+	ListNvidiaGPUs() ([]platform.NvidiaGPU, error)
 }
 
 type runtimeChecker interface {
@@ -395,6 +398,29 @@ func (a *App) RunNvidiaAcceptancePackResult(baseDir string) (ActionResult, error
 	return ActionResult{Title: "NVIDIA SAT", Body: body}, err
 }
 
+func (a *App) ListNvidiaGPUs() ([]platform.NvidiaGPU, error) {
+	return a.sat.ListNvidiaGPUs()
+}
+
+func (a *App) RunNvidiaAcceptancePackWithOptions(ctx context.Context, baseDir string, durationSec int, sizeMB int, gpuIndices []int) (ActionResult, error) {
+	if strings.TrimSpace(baseDir) == "" {
+		baseDir = DefaultSATBaseDir
+	}
+	path, err := a.sat.RunNvidiaAcceptancePackWithOptions(ctx, baseDir, durationSec, sizeMB, gpuIndices)
+	body := "Archive written."
+	if path != "" {
+		body = "Archive written to " + path
+	}
+	// Include terminal chart if available (runDir = archive path without .tar.gz).
+	if path != "" {
+		termPath := filepath.Join(strings.TrimSuffix(path, ".tar.gz"), "gpu-metrics-term.txt")
+		if chart, readErr := os.ReadFile(termPath); readErr == nil && len(chart) > 0 {
+			body += "\n\n" + string(chart)
+		}
+	}
+	return ActionResult{Title: "NVIDIA SAT", Body: body}, err
+}
+
 func (a *App) RunMemoryAcceptancePack(baseDir string) (string, error) {
 	if strings.TrimSpace(baseDir) == "" {
 		baseDir = DefaultSATBaseDir

audit/internal/app/app_test.go

@@ -1,6 +1,7 @@
 package app
 
 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"os"
@@ -105,6 +106,14 @@ func (f fakeSAT) RunNvidiaAcceptancePack(baseDir string) (string, error) {
 	return f.runNvidiaFn(baseDir)
 }
 
+func (f fakeSAT) RunNvidiaAcceptancePackWithOptions(_ context.Context, baseDir string, _ int, _ int, _ []int) (string, error) {
+	return f.runNvidiaFn(baseDir)
+}
+
+func (f fakeSAT) ListNvidiaGPUs() ([]platform.NvidiaGPU, error) {
+	return nil, nil
+}
+
 func (f fakeSAT) RunMemoryAcceptancePack(baseDir string) (string, error) {
 	return f.runMemoryFn(baseDir)
 }