Fixed NPE, fixed failed lister migration.

metrics/grafana/dashboards/indexer-dash.json

@@ -1498,11 +1498,12 @@
         "type": "prometheus",
         "uid": "PBFA97CFB590B2093"
       },
-      "description": "Warranty: 1440 TBW total",
+      "description": "Warranty: 1440 TBW or 3 years\n\nAcceptable TBW per day to last 3 years: 1.315068",
       "fieldConfig": {
         "defaults": {
           "mappings": [],
           "max": 1.315068,
+          "min": 0,
           "thresholds": {
             "mode": "percentage",
             "steps": [
@@ -1511,16 +1512,20 @@
                 "value": null
               },
               {
-                "color": "blue",
+                "color": "#6ED0E0",
+                "value": 25
+              },
+              {
+                "color": "#EAB839",
                 "value": 50
               },
               {
                 "color": "orange",
-                "value": 75
+                "value": 70
               },
               {
                 "color": "red",
-                "value": 90
+                "value": 85
               }
             ]
           },
@@ -2764,6 +2769,6 @@
   "timezone": "",
   "title": "Bsky indexer",
   "uid": "aXw6dQhSzs",
-  "version": 38,
+  "version": 39,
   "weekStart": ""
 }