SD-M3: every other seat at the seat list's grain, in its reading order (ADR 0613 §2)

Converted mechanically from mesh-sdk's compiled list at 5a38a12 by a program kept out of the repository; the three new
registry seats follow npm-package-registry, operator-channel the mesh's own seats.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

seats/node-display-server/seat.json

@@ -0,0 +1,42 @@
+{
+  "format": 1,
+  "seat": "node-display-server",
+  "scope": "node",
+  "grain": "seat-list",
+  "decision": "novox/hq ADR 0208",
+  "verbs": [
+    {
+      "name": "displays",
+      "description": "The monitors connected now, each with its identity, its modes and where it is placed; and the layout profile in force, if one matches.",
+      "input": {
+        "properties": {},
+        "type": "object"
+      }
+    },
+    {
+      "name": "layout",
+      "description": "The monitor layout profiles, keyed by the connected monitors' identities: list them, save the current arrangement under a name, or apply one.",
+      "input": {
+        "properties": {
+          "action": {
+            "description": "list, save or apply",
+            "enum": [
+              "list",
+              "save",
+              "apply"
+            ],
+            "type": "string"
+          },
+          "name": {
+            "description": "the profile to save or apply (save and apply only)",
+            "type": "string"
+          }
+        },
+        "required": [
+          "action"
+        ],
+        "type": "object"
+      }
+    }
+  ]
+}