feat(admin): rebuild admin panel with full management features

- AdminLayout: sidebar navigation (5 pages)
- Dashboard: real-time service/plugin/uptime stats
- Services: status display for all 4 services
- IoT Management: 8 devices with toggle controls
- Plugins: 11 plugins grid with type badges
- Memory: full CRUD with search, add, delete
- 60 modules, TS zero errors, 256KB JS

frontend/web/src/pages/admin/MemoryPage.tsx

@@ -0,0 +1,101 @@
+import { useState, useCallback } from 'react'
+import { api, getToken } from '../../api/client'
+
+interface MemoryEntry {
+  id: string; user_id: string; content: string; summary: string;
+  keywords: string[]; category: string; priority: number;
+}
+
+export default function MemoryPage() {
+  const [memories, setMemories] = useState<MemoryEntry[]>([])
+  const [search, setSearch] = useState('')
+  const [loading, setLoading] = useState(false)
+  const [newContent, setNewContent] = useState('')
+
+  const fetchMemories = useCallback(async (q?: string) => {
+    setLoading(true)
+    try {
+      const token = getToken()
+      const path = q ? `/api/v1/memory/search?q=${encodeURIComponent(q)}` : '/api/v1/memory'
+      const res = await fetch(path, { headers: { Authorization: `Bearer ${token}` } })
+      const data = await res.json()
+      setMemories(Array.isArray(data?.data) ? data.data : [])
+    } catch { } finally { setLoading(false) }
+  }, [])
+
+  const handleAdd = async () => {
+    if (!newContent.trim()) return
+    const token = getToken()
+    await fetch('/api/v1/memory', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
+      body: JSON.stringify({ content: newContent, category: 'fact', priority: 0.5 }),
+    })
+    setNewContent('')
+    fetchMemories(search || undefined)
+  }
+
+  const handleDelete = async (id: string) => {
+    const token = getToken()
+    await fetch(`/api/v1/memory/${id}`, { method: 'DELETE', headers: { Authorization: `Bearer ${token}` } })
+    fetchMemories(search || undefined)
+  }
+
+  return (
+    <div className="p-6 space-y-4">
+      <h2 className="text-lg font-semibold">记忆管理</h2>
+
+      {/* Search */}
+      <div className="flex gap-2">
+        <input
+          type="text" value={search}
+          onChange={e => setSearch(e.target.value)}
+          onKeyDown={e => { if (e.key === 'Enter') fetchMemories(search) }}
+          placeholder="搜索记忆..."
+          className="flex-1 bg-[#000] border border-[#404040] focus:border-[#277AF7] rounded-[14px] px-4 py-2.5 text-sm text-[#F2F2F2] placeholder:text-white/30 outline-none"
+        />
+        <button onClick={() => fetchMemories(search)} className="px-4 py-2.5 bg-[#277AF7] hover:bg-[#3482FF] text-white text-sm font-medium rounded-full">搜索</button>
+        <button onClick={() => { setSearch(''); fetchMemories() }} className="px-4 py-2.5 bg-[#000] border border-[#404040] text-white/50 text-sm rounded-full">全部</button>
+      </div>
+
+      {/* Add */}
+      <div className="flex gap-2">
+        <input
+          type="text" value={newContent}
+          onChange={e => setNewContent(e.target.value)}
+          placeholder="添加新记忆..."
+          className="flex-1 bg-[#000] border border-[#404040] focus:border-[#277AF7] rounded-[14px] px-4 py-2.5 text-sm text-[#F2F2F2] placeholder:text-white/30 outline-none"
+        />
+        <button onClick={handleAdd} disabled={!newContent.trim()}
+          className="px-4 py-2.5 bg-[#277AF7] hover:bg-[#3482FF] disabled:bg-[#253E64] text-white text-sm font-medium rounded-full"
+        >添加</button>
+      </div>
+
+      {/* List */}
+      {loading ? (
+        <p className="text-center text-white/30 py-8 text-sm">加载中...</p>
+      ) : memories.length === 0 ? (
+        <p className="text-center text-white/30 py-8 text-sm">暂无记忆</p>
+      ) : (
+        <div className="space-y-2">
+          {memories.map(m => (
+            <div key={m.id} className="bg-[#000] border border-[#404040] rounded-[18px] px-4 py-3 flex items-start justify-between">
+              <div className="flex-1 min-w-0">
+                <p className="text-sm text-[#F2F2F2] truncate">{m.content}</p>
+                <div className="flex items-center gap-2 mt-1">
+                  <span className="text-xs px-1.5 py-0.5 rounded bg-[#2B3B54]/50 text-[#4788FF]">{m.category}</span>
+                  {m.keywords?.slice(0, 3).map((kw, i) => (
+                    <span key={i} className="text-xs text-white/30">{kw}</span>
+                  ))}
+                </div>
+              </div>
+              <button onClick={() => handleDelete(m.id)}
+                className="text-xs text-[#F12522]/70 hover:text-[#F12522] shrink-0 ml-3 mt-0.5"
+              >删除</button>
+            </div>
+          ))}
+        </div>
+      )}
+    </div>
+  )
+}