Revert linkingProperties wrapper; use flat linkingState

Reverts commit 7e4f4f8 (Wrap linkingState in linkingProperties).

Restores the flat linkingState property on DeviceRegistryNamespaceDescription and removes the LinkingProperties and LinkingError models. Updates source examples and regenerates the swagger and copied examples via tsp compile.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Molly Iverson

specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/DeviceProvisioningServices/examples/2026-06-01-preview/DPSGet.json

@@ -40,9 +40,7 @@
               "namespaceUuid": "1c0f6ad0-9b13-4f0f-9b98-7a3a64a8c5e1",
               "dataAddress": "eastus.api.deviceregistry.com",
               "location": "eastus",
-              "linkingProperties": {
-                "state": "Succeeded"
-              }
+              "linkingState": "Succeeded"
             }
           ]
         },

specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/DeviceProvisioningServices/examples/2026-06-01-preview/DPSGet_UserAssignedNamespaceIdentity.json

@@ -41,9 +41,7 @@
               "namespaceUuid": "1c0f6ad0-9b13-4f0f-9b98-7a3a64a8c5e1",
               "dataAddress": "eastus.api.deviceregistry.com",
               "location": "eastus",
-              "linkingProperties": {
-                "state": "Succeeded"
-              }
+              "linkingState": "Succeeded"
             }
           ]
         },

specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/DeviceProvisioningServices/models.tsp

@@ -616,11 +616,10 @@ model DeviceRegistryNamespaceDescription {
   location?: Azure.Core.azureLocation;
 
   /**
-   * Properties related to linking this provisioning service with the Azure Device Registry namespace.
+   * The linking state of this namespace.
    */
   @added(Versions.v2026_06_01_preview)
-  @visibility(Lifecycle.Read)
-  linkingProperties?: LinkingProperties;
+  linkingState?: LinkingState;
 }
 
 /**
@@ -989,44 +988,6 @@ model CertificateBodyDescription {
   isVerified?: boolean;
 }
 
-/**
- * The last error encountered when linking the provisioning service with an Azure Device Registry.
- * Mirrors the shape used by the IoT Hub Device Registry linking error model.
- */
-@added(Versions.v2026_06_01_preview)
-model LinkingError {
-  /** The error code. */
-  @visibility(Lifecycle.Read)
-  code?: string;
-
-  /** The HTTP status code. */
-  @visibility(Lifecycle.Read)
-  httpStatusCode?: string;
-
-  /** The error message. */
-  @visibility(Lifecycle.Read)
-  message?: string;
-
-  /** The error details. */
-  @visibility(Lifecycle.Read)
-  details?: string;
-}
-
-/**
- * Properties related to linking the provisioning service with an Azure Device Registry namespace.
- * Read-only; populated by the service as the linking lifecycle progresses.
- */
-@added(Versions.v2026_06_01_preview)
-model LinkingProperties {
-  /** Indicates whether the provisioning service is linked with an Azure Device Registry. */
-  @visibility(Lifecycle.Read)
-  state?: LinkingState;
-
-  /** The last error encountered when linking with the Azure Device Registry. */
-  @visibility(Lifecycle.Read)
-  error?: LinkingError;
-}
-
 /**
  * The state of ADR linking for a provisioning service.
  */

specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/DeviceProvisioningServices/preview/2026-06-01-preview/examples/DPSGet.json

@@ -40,9 +40,7 @@
               "namespaceUuid": "1c0f6ad0-9b13-4f0f-9b98-7a3a64a8c5e1",
               "dataAddress": "eastus.api.deviceregistry.com",
               "location": "eastus",
-              "linkingProperties": {
-                "state": "Succeeded"
-              }
+              "linkingState": "Succeeded"
             }
           ]
         },

specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/DeviceProvisioningServices/preview/2026-06-01-preview/examples/DPSGet_UserAssignedNamespaceIdentity.json

@@ -41,9 +41,7 @@
               "namespaceUuid": "1c0f6ad0-9b13-4f0f-9b98-7a3a64a8c5e1",
               "dataAddress": "eastus.api.deviceregistry.com",
               "location": "eastus",
-              "linkingProperties": {
-                "state": "Succeeded"
-              }
+              "linkingState": "Succeeded"
             }
           ]
         },

specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/DeviceProvisioningServices/preview/2026-06-01-preview/iotdps.json

@@ -1889,10 +1889,9 @@
           "$ref": "#/definitions/Azure.Core.azureLocation",
           "description": "Azure location of the linked Device Registry namespace."
         },
-        "linkingProperties": {
-          "$ref": "#/definitions/LinkingProperties",
-          "description": "Properties related to linking this provisioning service with the Azure Device Registry namespace.",
-          "readOnly": true
+        "linkingState": {
+          "$ref": "#/definitions/LinkingState",
+          "description": "The linking state of this namespace."
         }
       },
       "required": [
@@ -2278,48 +2277,6 @@
         "modelAsString": false
       }
     },
-    "LinkingError": {
-      "type": "object",
-      "description": "The last error encountered when linking the provisioning service with an Azure Device Registry.\nMirrors the shape used by the IoT Hub Device Registry linking error model.",
-      "properties": {
-        "code": {
-          "type": "string",
-          "description": "The error code.",
-          "readOnly": true
-        },
-        "httpStatusCode": {
-          "type": "string",
-          "description": "The HTTP status code.",
-          "readOnly": true
-        },
-        "message": {
-          "type": "string",
-          "description": "The error message.",
-          "readOnly": true
-        },
-        "details": {
-          "type": "string",
-          "description": "The error details.",
-          "readOnly": true
-        }
-      }
-    },
-    "LinkingProperties": {
-      "type": "object",
-      "description": "Properties related to linking the provisioning service with an Azure Device Registry namespace.\nRead-only; populated by the service as the linking lifecycle progresses.",
-      "properties": {
-        "state": {
-          "$ref": "#/definitions/LinkingState",
-          "description": "Indicates whether the provisioning service is linked with an Azure Device Registry.",
-          "readOnly": true
-        },
-        "error": {
-          "$ref": "#/definitions/LinkingError",
-          "description": "The last error encountered when linking with the Azure Device Registry.",
-          "readOnly": true
-        }
-      }
-    },
     "LinkingState": {
       "type": "string",
       "description": "The state of ADR linking for a provisioning service.",