improvement(decrypt): 优化解密结果页面

- 主按钮改为查看聊天记录跳转到聊天页面

- 更换为统一风格的聊天图标

frontend/pages/decrypt-result.vue

@@ -77,12 +77,12 @@
         
         <!-- 操作按钮 -->
         <div class="flex justify-center gap-4">
-          <NuxtLink to="/decrypt" 
+          <NuxtLink to="/chat" 
             class="inline-flex items-center px-6 py-3 bg-[#07C160] text-white rounded-lg font-medium hover:bg-[#06AD56] transition-all duration-200">
-            <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"/>
+            <svg class="w-5 h-5 mr-2" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M12 19.8C17.52 19.8 22 15.99 22 11.3C22 6.6 17.52 2.8 12 2.8C6.48 2.8 2 6.6 2 11.3C2 13.29 2.8 15.12 4.15 16.57C4.6 17.05 4.82 17.29 4.92 17.44C5.14 17.79 5.21 17.99 5.23 18.4C5.24 18.59 5.22 18.81 5.16 19.26C5.1 19.75 5.07 19.99 5.13 20.16C5.23 20.49 5.53 20.71 5.87 20.72C6.04 20.72 6.27 20.63 6.72 20.43L8.07 19.86C8.43 19.71 8.61 19.63 8.77 19.59C8.95 19.55 9.04 19.54 9.22 19.54C9.39 19.53 9.64 19.57 10.14 19.65C10.74 19.75 11.37 19.8 12 19.8Z"/>
             </svg>
-            继续解密
+            查看聊天记录
           </NuxtLink>
           <a href="https://sqlitebrowser.org/" target="_blank" 
             class="inline-flex items-center px-6 py-3 bg-white text-[#07C160] border border-[#07C160] rounded-lg font-medium hover:bg-gray-50 transition-all duration-200">