a11y 收尾：主题级对比度根因修复（indigo-500→600）+12 处控件 accessible name+4 处 heading-order，7 页复扫全 0 违规；基准 total_issues 保持 8

Result: {"status":"keep","total_issues":8,"eslint_errors":0,"eslint_problems":0,"eslint_warnings":0,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_exhaustive":0,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_total":0,"golint_test_usetesting":0,"golint_total":8,"golint_usestdlibvars":0,"golint_vetx_total":0,"golint_wastedassign":0,"measure_s":85,"tsc_errors":0,"vitest_failed":0,"vitest_total":126}

frontend/messages/fragments/admin.en.json

@@ -1237,7 +1237,8 @@
         "fetchFailed": "Failed to fetch analytics",
         "requestVolume": "Requests",
         "requestCount": "Request count",
-        "countTimes": "{count} ({percent}%)"
+        "countTimes": "{count} ({percent}%)",
+        "refresh": "Refresh"
       },
       "appLogs": {
         "loading": "Loading...",
@@ -1461,4 +1462,4 @@
       }
     }
   }
-}
+}

frontend/messages/fragments/admin.zh-CN.json

@@ -1237,7 +1237,8 @@
         "fetchFailed": "获取数据统计失败",
         "requestVolume": "请求量",
         "requestCount": "请求次数",
-        "countTimes": "{count} 次 ({percent}%)"
+        "countTimes": "{count} 次 ({percent}%)",
+        "refresh": "刷新"
       },
       "appLogs": {
         "loading": "加载中...",
@@ -1461,4 +1462,4 @@
       }
     }
   }
-}
+}