M3a：息壤三级记忆域——归真触发提取管线/白名单明忆/重忆确认/正影版本链/删除墓碑/双通道召回注入，退役旧记忆-抽取-反思-大周天-演化管线（迁移 004，验收 7 用例）

frontend/src/components/layout/Sidebar.tsx

@@ -11,8 +11,6 @@ import {
   CharacterIcon,
   CosmosIcon,
   DriveIcon,
-  EvolutionIcon,
-  MemoryIcon,
   ModelIcon,
   PersonalityIcon,
   RunIcon,
@@ -65,7 +63,6 @@ const NAV_GROUPS: NavGroup[] = [
       { href: "/wuxing", label: "五行", icon: <WuxingIcon /> },
       { href: "/characters", label: "人物", icon: <CharacterIcon /> },
       { href: "/personality", label: "人格", icon: <PersonalityIcon /> },
-      { href: "/evolution", label: "演化", icon: <EvolutionIcon /> },
     ],
   },
   {
@@ -87,10 +84,7 @@ const NAV_GROUPS: NavGroup[] = [
   },
   {
     title: "藏识",
-    items: [
-      { href: "/memory", label: "记忆", icon: <MemoryIcon /> },
-      { href: "/archive", label: "归档", icon: <ArchiveIcon /> },
-    ],
+    items: [{ href: "/archive", label: "归档", icon: <ArchiveIcon /> }],
   },
   {
     title: "百工",