feat(dash): Tripp Lite cards on Server Room UPS view [#372 #344]

charge + load gauges, status entities, hardware note. dev only.
https://projects.knownelement.com/issues/372

dashboards/server-room.yaml

@@ -103,6 +103,42 @@ views:
               fw UPS 02.2 · PbAc, 24 V nominal · usbhid-ups via pfv-tsys1
               (NUT :3493). This unit reports no input/output voltage over
               USB HID — battery-side metrics only.
+      - type: grid
+        cards:
+          - type: gauge
+            entity: sensor.tsys1_triplite_battery_charge
+            name: Tripp Lite charge
+            min: 0
+            max: 100
+            severity:
+              green: 60
+              yellow: 40
+              red: 20
+          - type: gauge
+            entity: sensor.tsys1_triplite_load
+            name: Tripp Lite load %
+            min: 0
+            max: 100
+            severity:
+              green: 70
+              yellow: 85
+              red: 95
+      - type: grid
+        cards:
+          - type: entities
+            title: Tripp Lite status
+            entities:
+              - sensor.tsys1_triplite_status
+              - sensor.tsys1_triplite_status_data
+              - sensor.tsys1_triplite_battery_charge
+              - sensor.tsys1_triplite_load
+              - sensor.tsys1_triplite_input_voltage
+              - sensor.tsys1_triplite_output_voltage
+          - type: markdown
+            content: >
+              **Tripp Lite UPS** · usbhid-ups via pfv-tsys1 (NUT :3493);
+              moved from tsys9 2026-09-04 (#372). Carries ~45% load —
+              mind runtime before adding gear.
       - type: grid
         cards:
           - type: entities