feat: AMD GPU compute stress via rocm-validation-suite GST (GEMM)

- Add rocm-validation-suite, rocblas, rocrand, hip-runtime-amd,
  hipblaslt, comgr to ISO (~700MB, needed for HIP compute)
- RunAMDStressPack: run RVS GST (SGEMM ~31 TFLOPS/GPU) + bandwidth test
- Add rvs symlink in chroot setup hook
- Pin all new package versions in VERSIONS

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

audit/internal/platform/sat.go

@@ -142,13 +142,27 @@ func (s *System) RunAMDStressPack(ctx context.Context, baseDir string, durationS
 	if err := ensureAMDRuntimeReady(); err != nil {
 		return "", err
 	}
+	// Write RVS GST config to a temp file
+	rvsCfg := fmt.Sprintf(`actions:
+- name: gst_stress
+  device: all
+  module: gst
+  parallel: true
+  duration: %d
+  copy_matrix: false
+  target_stress: 90
+  matrix_size_a: 8640
+  matrix_size_b: 8640
+  matrix_size_c: 8640
+`, seconds*1000)
+	cfgFile := "/tmp/bee-amd-gst.conf"
+	_ = os.WriteFile(cfgFile, []byte(rvsCfg), 0644)
+
 	return runAcceptancePackCtx(ctx, baseDir, "gpu-amd-stress", []satJob{
 		{name: "01-rocm-smi.log", cmd: []string{"rocm-smi"}},
 		{name: "02-rocm-bandwidth-test.log", cmd: []string{"rocm-bandwidth-test"}},
-		{name: fmt.Sprintf("03-rocm-smi-monitor-%ds.log", seconds), cmd: []string{
-			"bash", "-lc",
-			fmt.Sprintf("end=$((SECONDS+%d)); while [ \"$SECONDS\" -lt \"$end\" ]; do rocm-smi --showtemp --showpower --csv; sleep 1; done", seconds),
-		}},
+		{name: fmt.Sprintf("03-rvs-gst-%ds.log", seconds), cmd: []string{"rvs", "-c", cfgFile}},
+		{name: fmt.Sprintf("04-rocm-smi-after.log"), cmd: []string{"rocm-smi", "--showtemp", "--showpower", "--csv"}},
 	}, logFunc)
 }