feat(web): 更新侧边栏组件和个人工作台组件，增强导航和业务展示功能

web/src/components/layout/SidebarRail.vue

@@ -8,9 +8,6 @@
         </svg>
       </div>
       <strong class="brand-name">{{ displayCompanyName }}</strong>
-      <button class="brand-toggle" type="button" aria-label="打开 AI 助手" @click="emit('openChat')">
-        <i class="mdi mdi-chevron-double-left"></i>
-      </button>
     </div>
 
     <nav class="rail-nav" aria-label="功能导航">
@@ -115,10 +112,10 @@ const displayCompanyName = computed(() => props.companyName || 'X-Financial')
 
 .rail-brand {
   min-height: 86px;
-  display: grid;
-  grid-template-columns: 32px minmax(0, 1fr) 28px;
+  display: flex;
   align-items: center;
-  gap: 10px;
+  justify-content: center;
+  gap: 12px;
   padding: 22px 20px 18px;
 }
 
@@ -137,31 +134,11 @@ const displayCompanyName = computed(() => props.companyName || 'X-Financial')
 }
 
 .brand-name {
-  min-width: 0;
   color: #0f172a;
   font-size: 16px;
   font-weight: 800;
   letter-spacing: 0;
   white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
-}
-
-.brand-toggle {
-  width: 28px;
-  height: 28px;
-  display: grid;
-  place-items: center;
-  border: 0;
-  border-radius: 7px;
-  background: transparent;
-  color: #718096;
-  transition: background 180ms var(--ease), color 180ms var(--ease);
-}
-
-.brand-toggle:hover {
-  background: #eef7f4;
-  color: #07936f;
 }
 
 .rail-nav {