fix: preserve zh locale in i18n cleanup

frontend/src/i18n/locales/en.ts

@@ -2442,6 +2442,21 @@ export default {
       duplicateModels: 'Model "{0}" appears in multiple pricing entries',
       modelConflict: "Model patterns '{model1}' and '{model2}' conflict: overlapping match range. Model names are matched case-insensitively, so an existing entry already covers all case variants — no need to add the variant separately.",
       mappingConflict: "Mapping source patterns '{model1}' and '{model2}' conflict: overlapping match range. Source patterns are matched case-insensitively, so an existing entry already covers all case variants.",
+      intervalValidation: {
+        negativeMin: 'Interval #{index}: minimum token count ({value}) cannot be negative',
+        maxPositive: 'Interval #{index}: maximum token count ({value}) must be greater than 0',
+        maxGreaterThanMin: 'Interval #{index}: maximum token count ({max}) must be greater than minimum token count ({min})',
+        negativePrice: 'Interval #{index}: {field} cannot be negative',
+        unboundedLast: 'Interval #{index}: an unbounded interval (empty maximum token count) must be last',
+        overlap: 'Intervals #{previousIndex} and #{currentIndex} overlap: previous upper bound ({previousMax}) is greater than current lower bound ({currentMin})',
+        price: {
+          inputPrice: 'input price',
+          outputPrice: 'output price',
+          cacheWritePrice: 'cache write price',
+          cacheReadPrice: 'cache read price',
+          perRequestPrice: 'per-request price'
+        }
+      },
       deleteConfirm: 'Are you sure you want to delete channel "{name}"? This cannot be undone.',
       columns: {
         name: 'Name',
@@ -2476,10 +2491,15 @@ export default {
         outputPrice: 'Output',
         cacheWritePrice: 'Cache Write',
         cacheReadPrice: 'Cache Read',
+        cacheWritePriceShort: 'Cache W',
+        cacheReadPriceShort: 'Cache R',
         imageTokenPrice: 'Image Output',
         imageOutputPrice: 'Image Output Price',
         pricePlaceholder: 'Default',
         intervals: 'Context Intervals (optional)',
+        minTokens: 'Min',
+        maxTokens: 'Max',
+        inclusive: '(inclusive)',
         addInterval: 'Add Interval',
         requestTiers: 'Request Tiers',
         imageTiers: 'Image Tiers (Per Request)',
@@ -4798,6 +4818,51 @@ export default {
       loadingText: 'loading',
       ready: 'ready',
       autoRefreshRemaining: 'Remaining {seconds}s',
+      systemLogs: {
+        title: 'System Logs',
+        description: 'Newest logs are shown first. Filter, search, and clean up by condition.',
+        queue: 'Queue',
+        written: 'Written',
+        dropped: 'Dropped',
+        failed: 'Failed',
+        runtimeConfig: 'Runtime Log Configuration (applies immediately)',
+        all: 'All',
+        level: 'Level',
+        stacktraceThreshold: 'Stacktrace threshold',
+        samplingInitial: 'Sampling initial',
+        samplingThereafter: 'Sampling thereafter',
+        retentionDays: 'Retention days',
+        caller: 'caller',
+        sampling: 'sampling',
+        saveAndApply: 'Save and apply',
+        resetDefaults: 'Reset defaults',
+        latestWriteError: 'Latest write error:',
+        timeRange: 'Time range',
+        startTime: 'Start time (optional)',
+        endTime: 'End time (optional)',
+        component: 'Component',
+        componentPlaceholder: 'e.g. http.access',
+        keyId: 'KEY ID',
+        platform: 'Platform',
+        model: 'Model',
+        keyword: 'Keyword',
+        keywordPlaceholder: 'message/request_id',
+        search: 'Search',
+        cleanCurrentFilters: 'Clean current filters',
+        refreshHealth: 'Refresh health',
+        empty: 'No system logs',
+        time: 'Time',
+        logDetails: 'Log Details',
+        loadFailed: 'Failed to load system logs',
+        runtimeConfigActive: 'Runtime log configuration is active',
+        runtimeConfigSaveFailed: 'Failed to save log configuration',
+        resetRuntimeConfigConfirm: 'Reset to startup configuration (env/yaml) and apply immediately?',
+        runtimeConfigReset: 'Reset to startup log configuration',
+        runtimeConfigResetFailed: 'Failed to reset log configuration',
+        cleanupConfirm: 'Clean up system logs matching the current filters? This cannot be undone.',
+        cleanupSuccess: 'Cleanup complete. Deleted {count} log entries.',
+        cleanupFailed: 'Failed to clean up system logs'
+      },
       requestsTotal: 'Requests (total)',
       slaScope: 'SLA scope:',
       tokens: 'Tokens',

frontend/src/i18n/locales/zh.ts

@@ -2518,6 +2518,21 @@ export default {
       duplicateModels: '模型「{0}」在多个定价条目中重复',
       modelConflict: "模型模式 '{model1}' 和 '{model2}' 冲突：匹配范围重叠。模型名称按大小写不敏感匹配，已有条目已覆盖其所有大小写变体，无需重复添加。",
       mappingConflict: "模型映射源 '{model1}' 和 '{model2}' 冲突：匹配范围重叠。源模式按大小写不敏感匹配，已有条目已覆盖其所有大小写变体。",
+      intervalValidation: {
+        negativeMin: '区间 #{index}：最小 token 数（{value}）不能为负数',
+        maxPositive: '区间 #{index}：最大 token 数（{value}）必须大于 0',
+        maxGreaterThanMin: '区间 #{index}：最大 token 数（{max}）必须大于最小 token 数（{min}）',
+        negativePrice: '区间 #{index}：{field}不能为负数',
+        unboundedLast: '区间 #{index}：无上限区间（最大 token 数为空）必须放在最后',
+        overlap: '区间 #{previousIndex} 和 #{currentIndex} 重叠：前一个上界（{previousMax}）大于当前下界（{currentMin}）',
+        price: {
+          inputPrice: '输入价格',
+          outputPrice: '输出价格',
+          cacheWritePrice: '缓存写入价格',
+          cacheReadPrice: '缓存读取价格',
+          perRequestPrice: '单次价格'
+        }
+      },
       deleteConfirm: '确定要删除渠道「{name}」吗？此操作不可撤销。',
       columns: {
         name: '名称',
@@ -2552,10 +2567,15 @@ export default {
         outputPrice: '输出',
         cacheWritePrice: '缓存写入',
         cacheReadPrice: '缓存读取',
+        cacheWritePriceShort: '缓存写',
+        cacheReadPriceShort: '缓存读',
         imageTokenPrice: '图片输出',
         imageOutputPrice: '图片输出价格',
         pricePlaceholder: '默认',
         intervals: '上下文区间定价（可选）',
+        minTokens: '最小',
+        maxTokens: '最大',
+        inclusive: '（含）',
         addInterval: '添加区间',
         requestTiers: '按次计费层级',
         imageTiers: '图片计费层级（按次）',
@@ -4952,6 +4972,51 @@ export default {
       loadingText: '加载中...',
       ready: '就绪',
       autoRefreshRemaining: '剩余 {seconds}s',
+      systemLogs: {
+        title: '系统日志',
+        description: '优先显示最新日志，可按条件筛选、搜索和清理。',
+        queue: '队列',
+        written: '已写入',
+        dropped: '已丢弃',
+        failed: '写入失败',
+        runtimeConfig: '运行时日志配置（立即生效）',
+        all: '全部',
+        level: '级别',
+        stacktraceThreshold: '堆栈阈值',
+        samplingInitial: '采样初始条数',
+        samplingThereafter: '后续采样间隔',
+        retentionDays: '保留天数',
+        caller: '调用方',
+        sampling: '采样',
+        saveAndApply: '保存并应用',
+        resetDefaults: '重置默认值',
+        latestWriteError: '最近写入错误：',
+        timeRange: '时间范围',
+        startTime: '开始时间（可选）',
+        endTime: '结束时间（可选）',
+        component: '组件',
+        componentPlaceholder: '例如 http.access',
+        keyId: 'KEY ID',
+        platform: '平台',
+        model: '模型',
+        keyword: '关键词',
+        keywordPlaceholder: 'message/request_id',
+        search: '搜索',
+        cleanCurrentFilters: '清理当前筛选结果',
+        refreshHealth: '刷新健康状态',
+        empty: '暂无系统日志',
+        time: '时间',
+        logDetails: '日志详情',
+        loadFailed: '加载系统日志失败',
+        runtimeConfigActive: '运行时日志配置已生效',
+        runtimeConfigSaveFailed: '保存日志配置失败',
+        resetRuntimeConfigConfirm: '确定要重置为启动配置（env/yaml）并立即应用吗？',
+        runtimeConfigReset: '已重置为启动日志配置',
+        runtimeConfigResetFailed: '重置日志配置失败',
+        cleanupConfirm: '确定要清理匹配当前筛选条件的系统日志吗？此操作不可撤销。',
+        cleanupSuccess: '清理完成，已删除 {count} 条日志。',
+        cleanupFailed: '清理系统日志失败'
+      },
       requestsTotal: '请求（总计）',
       slaScope: 'SLA 范围：',
       tokens: 'Token数',