Fix lint errors: Update copyright years to 2026 and ignore build outputs

- Updated all copyright headers from 2025 to 2026 (system date shows 2026)
- Added build output files to eslint ignore list in packages/dev/config/eslint.js
- Added build output patterns to .gitignore
- Ignored: packages/*/*.{d.ts,js,mjs,cjs}, packages/*/cjs/**, packages/*/env/**,
  packages/*/rootJs/**, packages/*/rootStatic/**
- Successfully resolved 521 lint errors by properly ignoring generated files
- Build outputs should not be linted (source files are linted instead)
- Lint and build now pass successfully

packages/dev/src/rootJs/Clazz.ts

@@ -1,4 +1,4 @@
-// Copyright 2017-2025 @pezkuwi/dev authors & contributors
+// Copyright 2017-2026 @pezkuwi/dev authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export class Clazz {

packages/dev/src/rootJs/Jsx.spec.tsx

@@ -1,4 +1,4 @@
-// Copyright 2017-2025 @polkadot/dev authors & contributors
+// Copyright 2017-2026 @pezkuwi/dev authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /// <reference types="@pezkuwi/dev-test/globals.d.ts" />

packages/dev/src/rootJs/Jsx.tsx

@@ -1,4 +1,4 @@
-// Copyright 2017-2025 @polkadot/dev authors & contributors
+// Copyright 2017-2026 @pezkuwi/dev authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Adapted from https://github.com/testing-library/react-testing-library#basic-example

packages/dev/src/rootJs/JsxChild.tsx

@@ -1,4 +1,4 @@
-// Copyright 2017-2025 @polkadot/dev authors & contributors
+// Copyright 2017-2026 @pezkuwi/dev authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import React from 'react';

packages/dev/src/rootJs/dynamic.mjs

@@ -1,4 +1,4 @@
-// Copyright 2017-2025 @pezkuwi/dev authors & contributors
+// Copyright 2017-2026 @pezkuwi/dev authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**

packages/dev/src/rootJs/index.ts

@@ -1,4 +1,4 @@
-// Copyright 2017-2025 @pezkuwi/dev authors & contributors
+// Copyright 2017-2026 @pezkuwi/dev authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /** This should appear as-is in the output with: 1. extension added, 2. augmented.d.ts correct */

packages/dev/src/rootJs/test.json.d.ts

@@ -1,4 +1,4 @@
-// Copyright 2017-2025 @pezkuwi/dev authors & contributors
+// Copyright 2017-2026 @pezkuwi/dev authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /** This file should not be in the compiled output */