fix(usage): filter control messages and repair unknown records

- filter empty, null, refresh, and support_refresh messages before persistence
- require request_id for usage records
- repair Claude cache token accounting
- delete historical unknown records
- show deleted record count in usage management

src/i18n/locales/en.ts

@@ -248,18 +248,19 @@ export const en: Record<MessageKey, string> = {
   'usage.pricing.deleted': 'Model price deleted; overview cost updated',
   'usage.pricing.deleteConfirm': 'Delete the price for {model}?',
   'usage.dataManagement.title': 'Historical Data Management',
-  'usage.dataManagement.description': 'Scan and repair historical usage records with inconsistent cache token accounting.',
+  'usage.dataManagement.description': 'Scan and repair known anomalies in historical usage records.',
   'usage.dataManagement.manualBadge': 'Manual action',
-  'usage.dataManagement.notice': 'A database backup is created first. Only identifiable Claude / Anthropic records are processed.',
-  'usage.dataManagement.actionTitle': 'Repair cache records',
-  'usage.dataManagement.actionDescription': 'Use input token accounting that includes cache reads and cache creation.',
+  'usage.dataManagement.notice': 'A database backup is created first. Only cache anomalies and unknown records are processed.',
+  'usage.dataManagement.actionTitle': 'Repair historical anomalies',
+  'usage.dataManagement.actionDescription': 'Correct Claude cache token accounting and delete records recorded as unknown usage.',
   'usage.dataManagement.run': 'Scan and repair',
   'usage.dataManagement.running': 'Processing…',
-  'usage.dataManagement.confirm': 'Scan and repair historical cache records? A database backup will be created first.',
+  'usage.dataManagement.confirm': 'Scan and repair historical anomalous records? A database backup will be created first.',
   'usage.dataManagement.scanned': 'Scanned',
   'usage.dataManagement.repaired': 'Repaired',
+  'usage.dataManagement.deleted': 'Invalid records deleted',
   'usage.dataManagement.backup': 'Backup file',
-  'usage.dataManagement.success': 'Historical cache data processing completed. {repaired} records repaired.',
+  'usage.dataManagement.success': 'Historical data processed: {repaired} repaired and {deleted} invalid records deleted.',
   'usage.trend.title': 'Request and Token Trend',
   'usage.trend.description': 'Grouped by local system hour',
   'usage.token.title': 'Token Breakdown',

src/i18n/locales/zh-CN.ts

@@ -246,18 +246,19 @@ export const zhCN = {
   'usage.pricing.deleted': '模型价格已删除，总览成本已更新',
   'usage.pricing.deleteConfirm': '确定删除模型 {model} 的价格吗？',
   'usage.dataManagement.title': '历史数据管理',
-  'usage.dataManagement.description': '扫描并修复缓存 Token 口径异常的历史使用记录。',
+  'usage.dataManagement.description': '扫描并修复历史使用记录中的已知数据异常。',
   'usage.dataManagement.manualBadge': '手动操作',
-  'usage.dataManagement.notice': '修复前会自动备份数据库，仅处理可确认的 Claude / Anthropic 异常记录。',
-  'usage.dataManagement.actionTitle': '修复异常缓存记录',
-  'usage.dataManagement.actionDescription': '将输入 Token 统一为包含缓存读取和缓存创建的统计口径。',
+  'usage.dataManagement.notice': '修复前会自动备份数据库，仅处理缓存口径异常和 unknown 记录。',
+  'usage.dataManagement.actionTitle': '修复历史异常记录',
+  'usage.dataManagement.actionDescription': '修正错误缓存信息，并删除被误记为 unknown 的记录。',
   'usage.dataManagement.run': '扫描并修复',
   'usage.dataManagement.running': '处理中…',
-  'usage.dataManagement.confirm': '确定扫描并修复历史缓存记录吗？修复前会自动创建数据库备份。',
+  'usage.dataManagement.confirm': '确定扫描并修复历史异常记录吗？修复前会自动创建数据库备份。',
   'usage.dataManagement.scanned': '扫描记录',
   'usage.dataManagement.repaired': '修复记录',
+  'usage.dataManagement.deleted': '删除误记录',
   'usage.dataManagement.backup': '备份文件',
-  'usage.dataManagement.success': '历史缓存数据处理完成，已修复 {repaired} 条记录。',
+  'usage.dataManagement.success': '历史数据处理完成：修复 {repaired} 条，删除 {deleted} 条误记录。',
   'usage.trend.title': '请求与 Token 趋势',
   'usage.trend.description': '按系统本地小时聚合',
   'usage.token.title': 'Token 构成',

src/pages/UsageRecordsPage.tsx

@@ -163,6 +163,7 @@ type UsagePricing = {
 type UsageRepairResult = {
   scanned: number;
   repaired: number;
+  deleted: number;
   backupPath: string | null;
 };
 
@@ -759,11 +760,12 @@ function UsageDataManagementView() {
         <>
           <div className="management-alert success">
             <ShieldCheck size={16} aria-hidden="true" />
-            <span>{t('usage.dataManagement.success', { repaired: result.repaired })}</span>
+            <span>{t('usage.dataManagement.success', { repaired: result.repaired, deleted: result.deleted })}</span>
           </div>
           <div className="usage-data-management-result">
           <div><span>{t('usage.dataManagement.scanned')}</span><strong>{result.scanned.toLocaleString()}</strong></div>
           <div><span>{t('usage.dataManagement.repaired')}</span><strong>{result.repaired.toLocaleString()}</strong></div>
+          <div><span>{t('usage.dataManagement.deleted')}</span><strong>{result.deleted.toLocaleString()}</strong></div>
           <div><span>{t('usage.dataManagement.backup')}</span><strong title={result.backupPath ?? undefined}>{result.backupPath ?? '—'}</strong></div>
           </div>
         </>