优化: i18n硬编码清扫(8文件20+处中文字符串替为i18n)

- ToolCard: 已等待 → aiTool.waitTime

- ErrorBoundary: 堆栈详情 → error.stackDetails

- TopBar: 10处硬编码(tooltip+section标签+单位) → aiChat.* keys

- FileExplorer: 4处工程操作title → fileExplorer.*

- Tasks: 快捷菜单4处 → tasks.*

- EnrichmentPanel: 取消关联 → aiChat.enrichmentDismiss

- PlanProgress: 复用已有 aiChat.conflictsPending

- WorkflowDagDisplay: 删除中文fallback(已有i18n key)

- vue-tsc + vite build 通过

src/i18n/en/aiChat.ts

@@ -209,6 +209,20 @@ export default {
     // Compressed summary block label (before the system summary message when expanded)
     compressedSummaryLabel: 'Context summary',
 
+    // ── TopBar bottom context badges (tooltip + L3 full context popover labels) ──
+    viewGoals: 'View goals',
+    viewHistory: 'View history messages',
+    viewSummary: 'View context summary',
+    viewContext: 'View AI context',
+    contextSystemPrompt: 'System Prompt',
+    contextEnvironment: 'Environment',
+    contextCompressedSummary: 'Compressed Summary',
+    contextEnrichment: 'Enriched Context',
+    contextCountUnit: 'items',
+
+    // ── EnrichmentPanel ──
+    enrichmentDismiss: 'Unlink',
+
     // ── AE-2025-04 Session Trust ──
     // Auto-approval toast (same-session already approved same-kind op: same tool + same dir)
     autoApprovedToast: 'Auto-approved: {tool}({dir})',