feat(usable): integrate current dbtool implementation snapshot

Co-Authored-By: Paperclip <noreply@paperclip.ing>

gui/index.html

@@ -54,6 +54,16 @@
           </ol>
         </article>
 
+        <article class="card">
+          <p class="card__eyebrow">Review Path</p>
+          <h2>可按主流程逐步评审</h2>
+          <ul>
+            <li>Connect → Inspect → Query → Export</li>
+            <li>工作流轨道与高亮区域同步</li>
+            <li>`C` / `I` / `Q` / `E` 可快速切换评审步骤</li>
+          </ul>
+        </article>
+
         <article class="card">
           <p class="card__eyebrow">Acceptance</p>
           <h2>QA 重点确认</h2>