feat: 初始化医护端与患者端页面骨架

完成两个 Vite 应用的基础工程化配置、路由、状态管理及第一版业务页面，当前使用演示数据，尚未接入真实后端接口。

clinical-web/src/layouts/ClinicalLayout.vue

@@ -0,0 +1,73 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { RouterView, useRoute, useRouter } from 'vue-router'
+
+import { useAppStore } from '@/stores/app'
+
+const route = useRoute()
+const router = useRouter()
+const appStore = useAppStore()
+
+const menuItems = [
+  { path: '/dashboard', label: '工作台' },
+  { path: '/consent-tasks', label: '签署任务' },
+  { path: '/documents', label: '文书库' },
+  { path: '/reports', label: '统计报表' },
+  { path: '/settings', label: '系统设置' },
+]
+
+const activeMenu = computed(() => route.path)
+const pageTitle = computed(() => String(route.meta.title ?? '医签通'))
+
+function handleMenuSelect(path: string) {
+  if (path !== route.path) {
+    void router.push(path)
+  }
+}
+</script>
+
+<template>
+  <el-container class="clinical-layout">
+    <el-aside width="236px" class="clinical-sidebar">
+      <div class="brand">
+        <div class="brand-mark">签</div>
+        <div>
+          <strong>医签通</strong>
+          <span>medical-sign</span>
+        </div>
+      </div>
+
+      <el-menu :default-active="activeMenu" class="clinical-menu" @select="handleMenuSelect">
+        <el-menu-item v-for="item in menuItems" :key="item.path" :index="item.path">
+          <span class="menu-dot" />
+          <span>{{ item.label }}</span>
+        </el-menu-item>
+      </el-menu>
+
+      <div class="sidebar-footer">
+        <span class="status-dot" />
+        <span>演示环境运行中</span>
+      </div>
+    </el-aside>
+
+    <el-container>
+      <el-header class="clinical-header">
+        <div>
+          <p class="header-kicker">电子知情同意管理平台</p>
+          <h1>{{ pageTitle }}</h1>
+        </div>
+        <div class="user-context">
+          <div class="user-avatar">{{ appStore.userName.slice(0, 1) }}</div>
+          <div>
+            <strong>{{ appStore.userName }}</strong>
+            <span>{{ appStore.department }}</span>
+          </div>
+        </div>
+      </el-header>
+
+      <el-main class="clinical-main">
+        <RouterView />
+      </el-main>
+    </el-container>
+  </el-container>
+</template>