Show a finding by what identifies it, not by a key it may not have

Plugin/unraid/Tools/ai_repair_sweep.php

@@ -53,10 +53,17 @@ if ($status) {
     printf("autofix:  %s\n", vv_ai_repair_autofix_enabled() ? 'enabled' : 'disabled (detect only)');
     printf("last pass: %s\n", $last ? date('Y-m-d H:i:s', $last) : 'never');
     printf("open findings: %d\n", count($open));
+    // 'ref' rather than 'conf_key' — it is the conf key for the kinds that have one, and the
+    // thing that identifies the finding for the kinds that do not. Printing the key left every
+    // arr health row with a blank column.
     foreach ($open as $f) {
-        printf("  [%s] %-22s %-28s seen %d — %s\n",
-            $f['severity'] ?? '?', $f['subject'] ?? '?', $f['conf_key'] ?? '?',
-            (int)($f['seen'] ?? 0), $f['state'] ?? '?');
+        printf("  %-7s %-9s %-28s seen %-4d %-14s %s\n",
+            '[' . ($f['severity'] ?? '?') . ']',
+            $f['subject'] ?? '?',
+            $f['ref'] ?? ($f['conf_key'] ?? '?'),
+            (int)($f['seen'] ?? 0),
+            $f['state'] ?? '?',
+            mb_substr((string)($f['observed'] ?? ''), 0, 44));
     }
     exit(0);
 }