fixture: swap synthetic pending peer for a real one

Caught the dev mesh while a fresh sml launch (job 2297439, --dev3) was
still in OCF-PENDING — service: [], status: "pending", labels carry
served_model_name. Real shape, real hostname, real peer id; nothing
hand-rolled.

Author: robmsmt

backend/tests/fixtures/dnt_table_dev_live.json

@@ -139,61 +139,6 @@
     "status": "ready",
     "version": "v0.1.11"
   },
-  "/QmPendingExamplePeerForDummyRunZZZZZZZZZZZZZZ": {
-    "available_offering": null,
-    "connected": true,
-    "current_offering": null,
-    "hardware": {
-      "gpus": [
-        {
-          "name": "NVIDIA GH200 120GB",
-          "total_memory": 97871,
-          "used_memory": 0
-        },
-        {
-          "name": "NVIDIA GH200 120GB",
-          "total_memory": 97871,
-          "used_memory": 0
-        },
-        {
-          "name": "NVIDIA GH200 120GB",
-          "total_memory": 97871,
-          "used_memory": 0
-        },
-        {
-          "name": "NVIDIA GH200 120GB",
-          "total_memory": 97871,
-          "used_memory": 0
-        }
-      ],
-      "host_memory": 0,
-      "host_memory_bandwidth": 0,
-      "host_memory_used": 0
-    },
-    "hostname": "nid007777",
-    "id": "QmPendingExamplePeerForDummyRunZZZZZZZZZZZZZZ",
-    "labels": {
-      "expires_at": "2026-05-19T01:30:00Z",
-      "framework": "vllm",
-      "framework_args": "--port 8080 --model /capstor/store/cscs/swissai/infra01/hf_models/models/swiss-ai/Apertus-70B-Instruct-2509 --served-model-name swiss-ai/Apertus-70B-Instruct-2509-rob-pending --tensor-parallel-size 4 --max-model-len 8192 --enable-metrics",
-      "launched_by": "rosmith",
-      "served_model_name": "swiss-ai/Apertus-70B-Instruct-2509-rob-pending",
-      "slurm_job_id": "2299999",
-      "slurm_partition": "normal",
-      "started_at": "2026-05-18T19:30:00Z",
-      "worker_group_id": "2299999"
-    },
-    "last_seen": 1779139800,
-    "latency": 0,
-    "load": null,
-    "owner": "",
-    "privileged": false,
-    "public_address": "",
-    "role": null,
-    "service": [],
-    "status": "pending",
-    "version": "dev-9ff5ec9"
-  },
   "/QmPqzJvbFVdoXXTq2rKW1pZBUmKLhZEWWHa4RFVrnUMf7K": {
     "available_offering": null,
     "connected": true,
@@ -470,6 +415,61 @@
     "status": "ready",
     "version": "v0.1.11"
   },
+  "/QmY7FvKB3i6N1yvpkgAZXQCnFmpKR5WJ4MqqGNcLb3tWC5": {
+    "available_offering": null,
+    "connected": true,
+    "current_offering": null,
+    "hardware": {
+      "gpus": [
+        {
+          "name": "NVIDIA GH200 120GB",
+          "total_memory": 97871,
+          "used_memory": 6
+        },
+        {
+          "name": "NVIDIA GH200 120GB",
+          "total_memory": 97871,
+          "used_memory": 5
+        },
+        {
+          "name": "NVIDIA GH200 120GB",
+          "total_memory": 97871,
+          "used_memory": 5
+        },
+        {
+          "name": "NVIDIA GH200 120GB",
+          "total_memory": 97871,
+          "used_memory": 13
+        }
+      ],
+      "host_memory": 0,
+      "host_memory_bandwidth": 0,
+      "host_memory_used": 0
+    },
+    "hostname": "nid007456",
+    "id": "QmY7FvKB3i6N1yvpkgAZXQCnFmpKR5WJ4MqqGNcLb3tWC5",
+    "labels": {
+      "expires_at": "2026-05-19T00:09:35Z",
+      "framework": "sglang",
+      "framework_args": "--port 8080 --model-path /capstor/store/cscs/swissai/infra01/hf_models/models/swiss-ai/Apertus-8B-Instruct-2509 --served-model-name swiss-ai/Apertus-8B-Instruct-2509-rob-dev3 --host 0.0.0.0 --enable-metrics",
+      "launched_by": "rosmith",
+      "served_model_name": "swiss-ai/Apertus-8B-Instruct-2509-rob-dev3",
+      "slurm_job_id": "2297439",
+      "slurm_partition": "normal",
+      "started_at": "2026-05-18T18:09:35Z",
+      "worker_group_id": "2297439"
+    },
+    "last_seen": 1779127775,
+    "latency": 0,
+    "load": null,
+    "owner": "",
+    "privileged": false,
+    "public_address": "",
+    "role": null,
+    "service": null,
+    "status": "pending",
+    "version": "dev-9ff5ec9"
+  },
   "/QmbUKJkCfotDzbFE5uoTsXD4GRyPHjzZC1f2yAGLoeBMn9": {
     "available_offering": null,
     "connected": true,