feat: adapt codex app-server protocol updates

docs/protocol-snapshots/codex-app-server/0.135.0-alpha.1/json-schema/v2/ModelListParams.json

@@ -0,0 +1,30 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "ModelListParams",
+  "type": "object",
+  "properties": {
+    "cursor": {
+      "description": "Opaque pagination cursor returned by a previous call.",
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "includeHidden": {
+      "description": "When true, include models that are hidden from the default picker list.",
+      "type": [
+        "boolean",
+        "null"
+      ]
+    },
+    "limit": {
+      "description": "Optional page size; defaults to a reasonable server-side value.",
+      "type": [
+        "integer",
+        "null"
+      ],
+      "format": "uint32",
+      "minimum": 0.0
+    }
+  }
+}