feat: sync Sidebar and BottomNav, standardize user profile API

Align Sidebar & BottomNav menus, remove "Search", add user profile mock data, implement /api/users, add FilterDrawer, complete Section, ProfileHeader, MetricsRFM components

Co-authored-by: null <4804959+fnvtk@users.noreply.github.com>

components/ai-assistant/task-list.tsx

@@ -0,0 +1,87 @@
+"use client"
+
+import { useEffect } from "react"
+import type { AnalysisTask } from "@/types/ai-assistant"
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
+import { Badge } from "@/components/ui/badge"
+import { Button } from "@/components/ui/button"
+
+function statusBadgeClass(status: AnalysisTask["status"]) {
+  const map: Record<AnalysisTask["status"], string> = {
+    completed: "text-green-600 bg-green-50 border-green-200",
+    running: "text-blue-600 bg-blue-50 border-blue-200",
+    pending: "text-yellow-600 bg-yellow-50 border-yellow-200",
+    failed: "text-red-600 bg-red-50 border-red-200",
+  }
+  return map[status]
+}
+
+export default function TaskList({
+  tasks,
+  onTick,
+}: {
+  tasks: AnalysisTask[]
+  onTick?: () => void
+}) {
+  // 进度模拟：外部可传递 onTick 驱动
+  useEffect(() => {
+    if (!onTick) return
+    const timer = setInterval(() => onTick(), 1200)
+    return () => clearInterval(timer)
+  }, [onTick])
+
+  return (
+    <div className="grid grid-cols-1 lg:grid-cols-2 xl:grid-cols-3 gap-4">
+      {tasks.map((task) => (
+        <Card key={task.id} className="border-2 hover:shadow-lg transition-all duration-200">
+          <CardHeader className="pb-3">
+            <div className="flex items-center justify-between">
+              <CardTitle className="text-lg">{task.name}</CardTitle>
+              <Badge className={`${statusBadgeClass(task.status)} border`}>
+                {task.status === "pending"
+                  ? "等待中"
+                  : task.status === "running"
+                  ? "分析中"
+                  : task.status === "completed"
+                  ? "已完成"
+                  : "失败"}
+              </Badge>
+            </div>
+            <p className="text-sm text-gray-600">数据源: {task.database}</p>
+          </CardHeader>
+          <CardContent className="space-y-3">
+            {task.description && <p className="text-sm text-gray-700">{task.description}</p>}
+
+            <div className="w-full bg-gray-200 rounded-full h-2.5" aria-label="任务进度">
+              <div
+                className={`h-2.5 rounded-full ${
+                  task.status === "completed"
+                    ? "bg-green-600"
+                    : task.status === "running"
+                    ? "bg-blue-600"
+                    : task.status === "failed"
+                    ? "bg-red-600"
+                    : "bg-gray-400"
+                }`}
+                style={{ width: `${task.progress}%` }}
+              />
+            </div>
+
+            <div className="text-xs text-gray-500">
+              创建于 {new Date(task.createdAt).toLocaleString("zh-CN")}
+              {task.completedAt && <> · 完成于 {new Date(task.completedAt).toLocaleString("zh-CN")}</>}
+            </div>
+
+            {task.reportUrl && (
+              <div className="flex justify-end">
+                <Button asChild variant="outline" size="sm" aria-label="查看报告">
+                  <a href={task.reportUrl}>查看报告</a>
+                </Button>
+              </div>
+            )}
+          </CardContent>
+        </Card>
+      ))}
+    </div>
+  )
+}