fix: use Latin activity node labels

src/renderer/src/ActivityPanel.test.tsx

@@ -398,6 +398,26 @@ describe('ActivityPanel', () => {
     expect(
       within(timeline).getAllByText('GoodBuddy').length
     ).toBeGreaterThan(0)
+    expect(
+      within(
+        screen.getByRole('button', { name: /用户，任务/u })
+      ).getByText('U')
+    ).toBeInTheDocument()
+    expect(
+      within(
+        screen.getByRole('button', { name: /活动 2，工具/u })
+      ).getByText('T')
+    ).toBeInTheDocument()
+    expect(
+      within(
+        screen.getByRole('button', { name: /研究专家，子专家/u })
+      ).getByText('S')
+    ).toBeInTheDocument()
+    expect(
+      within(
+        screen.getByRole('button', { name: /GoodBuddy，结果/u })
+      ).getByText('G')
+    ).toBeInTheDocument()
     expect(within(timeline).getByText('项目：项目甲')).toBeInTheDocument()
     expect(
       within(timeline).getByText(

src/renderer/src/ActivityPanel.tsx

@@ -381,9 +381,7 @@ export function ActivityPanel({
       return {
         kind: 'subagent',
         name: record.title,
-        abbreviation:
-          Array.from(record.title.trim())[0] ??
-          t('timeline.nodes.subagent')
+        abbreviation: t('timeline.nodes.subagent')
       }
     }
     if (record.kind === 'tool') {

src/renderer/src/i18n/locales/zh-CN/activity.ts

@@ -92,11 +92,11 @@ export const activity = {
       approval: '审批'
     },
     nodes: {
-      user: '用',
+      user: 'U',
       assistant: 'G',
-      tool: '工',
-      approval: '审',
-      subagent: '专'
+      tool: 'T',
+      approval: 'A',
+      subagent: 'S'
     }
   },
   empty: {