storage SAT: split collect/self-test modes, add per-disk text reports

Check mode: read-only SMART/NVMe data collection, no self-test.
Load mode: same collection + short self-test (nvme device-self-test -s 1,
smartctl -t short). Card descriptions updated accordingly.

After each storage SAT run, a disk-N-devname-report.txt is written
per device into the runDir (auto-included in support bundles).
Web UI task page renders one card per disk directly below Task Report.

Also fixes pre-existing TestDashboardRendersRuntimeHealthTable failure:
test fixture used "inactive" status but code now treats inactive as OK
for completed oneshot services; updated to "failed" to match intent.

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

audit/internal/webui/task_report.go

@@ -232,6 +232,9 @@ func renderTaskReportFragment(report taskReport, charts map[string]string, logTe
 	if powerCard := renderTaskPowerResultsCard(report.Target, logText); powerCard != "" {
 		b.WriteString(powerCard)
 	}
+	if report.Target == "storage" {
+		b.WriteString(renderStorageDiskReportCards(logText))
+	}
 
 	if len(report.Charts) > 0 {
 		for _, chart := range report.Charts {
@@ -369,3 +372,60 @@ func formatTaskDuration(sec int) string {
 	}
 	return fmt.Sprintf("%dh %02dm %02ds", sec/3600, (sec%3600)/60, sec%60)
 }
+
+// renderStorageDiskReportCards reads disk-*-report.txt files from the storage
+// SAT run directory and renders one card per disk.
+func renderStorageDiskReportCards(logText string) string {
+	runDir := taskStorageRunDirFromLog(logText)
+	if runDir == "" {
+		return ""
+	}
+	entries, err := os.ReadDir(runDir)
+	if err != nil {
+		return ""
+	}
+
+	var cards []string
+	for _, entry := range entries {
+		name := entry.Name()
+		if !strings.HasPrefix(name, "disk-") || !strings.HasSuffix(name, "-report.txt") {
+			continue
+		}
+		data, err := os.ReadFile(filepath.Join(runDir, name))
+		if err != nil || len(data) == 0 {
+			continue
+		}
+		// Extract disk label from filename: "disk-01-nvme0n1-report.txt" → "Disk 01 — nvme0n1"
+		stem := strings.TrimPrefix(strings.TrimSuffix(name, "-report.txt"), "disk-")
+		// stem is like "01-nvme0n1"
+		parts := strings.SplitN(stem, "-", 2)
+		title := "Disk " + stem
+		if len(parts) == 2 {
+			title = "Disk " + parts[0] + " — " + parts[1]
+		}
+		card := `<div class="card">` +
+			`<div class="card-head">` + html.EscapeString(title) + `</div>` +
+			`<div class="card-body" style="padding:0">` +
+			`<pre style="margin:0;padding:16px;font-size:12px;line-height:1.6;overflow-x:auto;white-space:pre">` +
+			html.EscapeString(string(data)) +
+			`</pre></div></div>`
+		cards = append(cards, card)
+	}
+	return strings.Join(cards, "\n")
+}
+
+// taskStorageRunDirFromLog finds the storage SAT run directory path logged as
+// "Archive: /path/to/storage-YYYYMMDD-HHMMSS".
+func taskStorageRunDirFromLog(logText string) string {
+	for _, line := range strings.Split(logText, "\n") {
+		line = strings.TrimSpace(line)
+		if !strings.HasPrefix(line, "Archive:") {
+			continue
+		}
+		path := strings.TrimSpace(strings.TrimPrefix(line, "Archive:"))
+		if strings.Contains(filepath.Base(path), "storage-") && !strings.HasSuffix(path, ".tar.gz") {
+			return path
+		}
+	}
+	return ""
+}