refactor(原型设计): 调整用户信息展示位置

docs/原型设计/registration-prototype-demo.html

@@ -652,6 +652,14 @@
       margin-left: 0;
     }
 
+    .topbar-user {
+      display: flex;
+      align-items: center;
+      gap: 10px;
+      margin-left: 18px;
+      white-space: nowrap;
+    }
+
     .system-nav-btn {
       min-height: 64px;
       padding: 0 16px;
@@ -724,6 +732,18 @@
       box-shadow: 0 8px 18px rgba(58, 115, 217, 0.2);
     }
 
+    .topbar-avatar {
+      width: 34px;
+      height: 34px;
+      border-radius: 50%;
+      background: linear-gradient(180deg, #5d8ee9 0%, #3c74db 100%);
+      color: #fff;
+      display: grid;
+      place-items: center;
+      font-weight: 700;
+      box-shadow: 0 8px 18px rgba(58, 115, 217, 0.18);
+    }
+
     @keyframes fadeIn {
       from { opacity: 0; transform: translateY(4px); }
       to { opacity: 1; transform: translateY(0); }
@@ -799,6 +819,10 @@
             <button class="system-nav-btn" data-top-nav="knowledge">知识库</button>
             <button class="system-nav-btn" data-top-nav="history">处理历史</button>
           </nav>
+          <div class="topbar-user">
+            <span class="muted" style="font-size:13px;">admin1</span>
+            <span class="topbar-avatar">A</span>
+          </div>
         </div>
       </div>
     </header>
@@ -1183,13 +1207,6 @@
                 <div class="history-list">
                   ${renderHistoryList(data.conversations)}
                 </div>
-                <div class="history-footer">
-                  <div class="history-avatar">A</div>
-                  <div>
-                    <strong style="display:block; font-size:14px;">admin1</strong>
-                    <div class="muted" style="color:#5da96f;">在线</div>
-                  </div>
-                </div>
               </div>
             </aside>