fix(ui): rename the wiki nav item to "Wiki" / "知识库"

mateclaw-ui/src/i18n/locales/en-US.ts

@@ -385,7 +385,7 @@ export default {
     workspace: 'Workspace',
     agentContext: 'Agent Context',
     skills: 'Skills',
-    wiki: 'Wiki KB',
+    wiki: 'Wiki',
     enterprise: 'Enterprise',
     tools: 'Tools',
     plugins: 'Plugins',

mateclaw-ui/src/i18n/locales/zh-CN.ts

@@ -388,7 +388,7 @@ export default {
     workspace: '工作区',
     agentContext: '智能体上下文',
     skills: '技能',
-    wiki: 'Wiki 知识库',
+    wiki: '知识库',
     enterprise: '企业场景',
     tools: '工具',
     plugins: '插件',