workflow action for copyright headers (#2345)

.github/workflows/copyright-validate.yaml

@@ -0,0 +1,10 @@
+name: Check Copyright Headers
+on: pull_request
+jobs:
+  copywrite:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      - uses: hashicorp/setup-copywrite@32638da2d4e81d56a0764aa1547882fc4d209636 # v1.1.3
+      - name: Check Header Compliance
+        run: copywrite headers --plan

ui/desktop/app/services/client-agent-sessions.js

@@ -1,3 +1,8 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: BUSL-1.1
+ */
+
 import Service, { inject as service } from '@ember/service';
 
 export default class ClientAgentSessionsService extends Service {

ui/desktop/tests/unit/services/client-agent-sessions-test.js

@@ -1,3 +1,8 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: BUSL-1.1
+ */
+
 import { module, test } from 'qunit';
 import { setupTest } from 'desktop/tests/helpers';