Updates to Microsoft.Monitor 2025-05-03-preview (#37374)

Updates and cleanup to the Microsoft.Monitor 2025-05-03-preview api version

1. Combine microsoft.monitor/accounts/issues typespec and spec into the parent microsoft.monitor/accounts spec
2. Add specs for microsoft.monitor/accounts/healthmodels

---------

Co-authored-by: Sebastian <[email protected]>
Co-authored-by: Sebastian Bader <[email protected]>

Author: jamlai

specification/monitor/Microsoft.Monitor.Accounts.Management/main.tsp

@@ -0,0 +1,63 @@
+{
+  "title": "AuthenticationSettings_CreateOrUpdate",
+  "operationId": "AuthenticationSettings_CreateOrUpdate",
+  "parameters": {
+    "api-version": "2025-05-03-preview",
+    "subscriptionId": "00000000-0000-0000-0000-000000000000",
+    "resourceGroupName": "myResourceGroup",
+    "azureMonitorWorkspaceName": "myWorkspace",
+    "healthModelName": "myHealthModel",
+    "authenticationSettingName": "myAuthSetting",
+    "resource": {
+      "properties": {
+        "managedIdentityName": "SystemAssigned",
+        "displayName": "myDisplayName",
+        "authenticationKind": "ManagedIdentity"
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "properties": {
+          "managedIdentityName": "SystemAssigned",
+          "provisioningState": "Succeeded",
+          "displayName": "myDisplayName",
+          "authenticationKind": "ManagedIdentity"
+        },
+        "id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/myResourceGroup/providers/Microsoft.Monitor/accounts/myWorkspace/healthModels/myHealthModel/authenticationSettings/myAuthSetting",
+        "name": "myAuthSetting",
+        "type": "Microsoft.Monitor/accounts/healthModels/authenticationSettings",
+        "systemData": {
+          "createdBy": "myCreatedBy",
+          "createdByType": "User",
+          "createdAt": "2023-09-18T14:04:09.327Z",
+          "lastModifiedBy": "myLastModifiedBy",
+          "lastModifiedByType": "User",
+          "lastModifiedAt": "2023-09-18T14:04:09.328Z"
+        }
+      }
+    },
+    "201": {
+      "body": {
+        "properties": {
+          "managedIdentityName": "SystemAssigned",
+          "provisioningState": "Succeeded",
+          "displayName": "myDisplayName",
+          "authenticationKind": "ManagedIdentity"
+        },
+        "id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/myResourceGroup/providers/Microsoft.Monitor/accounts/myWorkspace/healthModels/myHealthModel/authenticationSettings/myAuthSetting",
+        "name": "myAuthSetting",
+        "type": "Microsoft.Monitor/accounts/healthModels/authenticationSettings",
+        "systemData": {
+          "createdBy": "myCreatedBy",
+          "createdByType": "User",
+          "createdAt": "2023-09-18T14:04:09.327Z",
+          "lastModifiedBy": "myLastModifiedBy",
+          "lastModifiedByType": "User",
+          "lastModifiedAt": "2023-09-18T14:04:09.328Z"
+        }
+      }
+    }
+  }
+}