fix: prevent dropping license notices on some files when publishing (#604)

This PR prevents license notices being dropped when creating package for
publication.

This can happen when first import in the file is type-only import that
gets removed during build. When there is no empty line between the
license block comment and such import, the comment is treated as related
to the import and gets removed alongside it.
Adding an empty line between copyright notice and the import fixes the
issue.

Co-authored-by: Piotr Paulski <[email protected]>

Author: zyzyzyryxy

src/McpContext.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import fs from 'node:fs/promises';
 import os from 'node:os';
 import path from 'node:path';

src/McpResponse.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import {
   AggregatedIssue,
   Marked,

src/WaitForHelper.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import {logger} from './logger.js';
 import type {Page, Protocol, CdpPage} from './third_party/index.js';
 

src/formatters/snapshotFormatter.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import type {TextSnapshot, TextSnapshotNode} from '../McpContext.js';
 
 export function formatSnapshotNode(

src/logger.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import fs from 'node:fs';
 
 import {debug} from './third_party/index.js';

src/third_party/index.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import 'core-js/modules/es.promise.with-resolvers.js';
 import 'core-js/proposals/iterator-helpers.js';
 

src/utils/keyboard.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import type {KeyInput} from '../third_party/index.js';
 
 // See the KeyInput type for the list of supported keys.

tests/DevtoolsUtils.test.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import assert from 'node:assert';
 import {describe, it} from 'node:test';
 

tests/McpContext.test.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import assert from 'node:assert';
 import {describe, it} from 'node:test';
 

tests/McpResponse.test.ts

@@ -3,6 +3,7 @@
  * Copyright 2025 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+
 import assert from 'node:assert';
 import {readFile, rm} from 'node:fs/promises';
 import {tmpdir} from 'node:os';