M3b：世谱激活接入组装管线（关键词命中/常驻/预算/符文展开）与前端记忆治理页（候选箱/重忆确认/正影/删除/实录溯源）

frontend/src/components/layout/Sidebar.tsx

@@ -7,6 +7,7 @@ import { LogoButton } from "@/components/easter-egg/LogoButton";
 import {
   AdminIcon,
   ArchiveIcon,
+  MemoryIcon,
   ChatIcon,
   CharacterIcon,
   CosmosIcon,
@@ -84,7 +85,10 @@ const NAV_GROUPS: NavGroup[] = [
   },
   {
     title: "藏识",
-    items: [{ href: "/archive", label: "归档", icon: <ArchiveIcon /> }],
+    items: [
+      { href: "/memory", label: "记忆", icon: <MemoryIcon /> },
+      { href: "/archive", label: "归档", icon: <ArchiveIcon /> },
+    ],
   },
   {
     title: "百工",