feat(monitoring): add host RAG trace observability

web/src/i18n/locales/en-US.ts

@@ -1217,6 +1217,7 @@ const enUS = {
       embeddingCalls: 'Embedding Calls',
       modelCalls: 'Model Calls',
       tokens: 'Token Monitoring',
+      traces: 'Traces',
       feedback: 'User Feedback',
       sessions: 'Session Analysis',
       errors: 'Error Logs',
@@ -1321,6 +1322,11 @@ const enUS = {
       noErrors: 'No errors found',
       stackTrace: 'Stack Trace',
     },
+    traces: {
+      title: 'Traces',
+      noTraces: 'No traces found',
+      noSpans: 'No spans recorded for this trace',
+    },
     feedback: {
       title: 'User Feedback',
       totalFeedback: 'Total Feedback',

web/src/i18n/locales/zh-Hans.ts

@@ -1158,6 +1158,7 @@ const zhHans = {
       embeddingCalls: 'Embedding调用',
       modelCalls: '模型调用',
       tokens: 'Token 监控',
+      traces: '链路追踪',
       feedback: '用户反馈',
       sessions: '会话分析',
       errors: '错误日志',
@@ -1262,6 +1263,11 @@ const zhHans = {
       noErrors: '未找到错误',
       stackTrace: '堆栈追踪',
     },
+    traces: {
+      title: '链路追踪',
+      noTraces: '未找到链路记录',
+      noSpans: '此链路暂无 Span 记录',
+    },
     feedback: {
       title: '用户反馈',
       totalFeedback: '总反馈数',