fix: Remove incorrect SRI hashes blocking scripts

The SRI integrity attributes added in previous commit had incorrect hashes
causing all CDN scripts to be blocked by browsers, which broke:
- Prism.js syntax highlighting
- Code copy button functionality
- React component rendering

Removed all integrity attributes to restore functionality. Production
minified bundles are still used for better performance.

Author: myoshi2891

JavaScript/2627. Debounce/Claude Code Sonnet 4.5 extended/README_react.html

@@ -383,7 +383,7 @@ <h3 class="text-xl font-bold text-teal-800 mb-3">主要ポイント</h3>
 
                         <!-- 開始 → タイマー確認 -->
                         <path
-                            d="M 420 85 L 420 130"
+                            d="M 420 85 L 420 150"
                             stroke="#64748b"
                             stroke-width="2"
                             fill="none"
@@ -777,48 +777,37 @@ <h3 class="text-xl font-bold text-teal-800 mb-3">実装比較</h3>
         </div>
 
         <!-- React & ReactDOM (Production with SRI) -->
-        <script
-            crossorigin
-            src="https://unpkg.com/react@18/umd/react.production.min.js"
-            integrity="sha384-qjOOUP0K1KvAVDw9E8I0jzwGS0zCgJKiE3m+M1/2NKzJPQs5qN4N5K/3TJmZ0p1"
-        ></script>
+        <script crossorigin src="https://unpkg.com/react@18/umd/react.production.min.js"></script>
         <script
             crossorigin
             src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"
-            integrity="sha384-8hK7QAmC3F9pT0x0nBB+mP7jJ2p+8C4Z2MiRQ/yJ0O8CmV8M8J3l0tW5K9Z6p3V"
         ></script>
 
         <!-- Babel Standalone -->
         <script
             src="https://unpkg.com/@babel/standalone/babel.min.js"
-            integrity="sha384-qVJ6T9jZmh4h4j9J5K7q1B2e3E0d4K8C2Y7C1J4K2B0W6M8Z3B1L5Y0H6K9A1D"
             crossorigin="anonymous"
         ></script>
 
         <!-- Prism.js -->
         <script
             src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/prism.min.js"
-            integrity="sha512-7Z9J3l1+EYfeaPKcGXu3MS/7T+w19WtKQY/n+xzmw4hZhJ9tyYmcUS+4QqAlzhicE5LAfMQSF3iFTK9bQdTxXg=="
             crossorigin="anonymous"
         ></script>
         <script
             src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/components/prism-python.min.js"
-            integrity="sha512-AKaNmg8COK0zEbjTdMHJAPJ0z6VeNqvRvH9/eu5+noLVk4eK1JDBXzgpzE8oAqJ8i2bQH8D7qQLLOwTQz6J3zA=="
             crossorigin="anonymous"
         ></script>
         <script
             src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/line-numbers/prism-line-numbers.min.js"
-            integrity="sha512-dubtf8xMHSQlExGRQ5R7toxHLgSDZ0K7AuBqwwhotZiJVfFPq2oL6z9DL+fZnZCdJe3r3elHsKLN26Oa0iN7Eg=="
             crossorigin="anonymous"
         ></script>
         <script
             src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/toolbar/prism-toolbar.min.js"
-            integrity="sha512-st608h+ZqzliahyzEpETxzU0f7z7a9acyWGXyO4+qjbvmx5Xl8E8k7d7vXwNUtqN4T4/fQr5sJvTVLVoPMf1hg=="
             crossorigin="anonymous"
         ></script>
         <script
             src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/copy-to-clipboard/prism-copy-to-clipboard.min.js"
-            integrity="sha512-/kVH1yCu5hT8vLb5z8Z8Mq8gJQ4Sq/JVXW/lFvpQJiEqcFGrfNqQn0wY8u7JiZx4MBV3pwvE5qL3L3prQvl5Kg=="
             crossorigin="anonymous"
         ></script>