fix: Address round 3 review feedback (Doc consistency, JSDoc)

- Snail Traversal: Updated docs to reflect 'Direct access as generic type T' instead of 'LeetCode casting'.
- Cache With Time Limit: Replaced @sideeffect with standard @remarks for side effect documentation.

Author: myoshi2891

JavaScript/2622. Cache With Time Limit/Claude Code Sonnet 4.5/CacheWithTimeLimit_TS.ipynb

@@ -291,7 +291,7 @@
         "     * 未期限切れキーの数を取得\n",
         "     * @returns アクティブなキーの数\n",
         "     * @complexity Time: O(n), Space: O(1)\n",
-        "     * @sideeffect 期限切れエントリを遅延削除する\n",
+        "     * @remarks 副作用: 期限切れエントリを遅延削除する\n",
         "     */\n",
         "    count(): number {\n",
         "        const now = Date.now();\n",

JavaScript/2624. Snail Traversal/Claude Code Sonnet 4.5/Snail_Traversal_TS.ipynb

@@ -106,7 +106,7 @@
         "            ? positionInCol \n",
         "            : rowsCount - 1 - positionInCol;\n",
         "        \n",
-        "        // 型安全な代入（this[i]はnumber型と推論される）\n",
+        "        // 型安全な代入（this[i]はT型として推論される）\n",
         "        result[row]![col] = this[i];\n",
         "    }\n",
         "    \n",