refactor(logger): optimize logging architecture with 6 improvements

1. Extract shared module: consolidate getLogDir() and isProduction()
   into shared.ts, eliminate duplication across logger modules
2. Make retention config effective: delay file transport creation
   until config is loaded, apply appRetention/auditRetention from config.yaml
3. Add before-quit log flush: close logger and audit logger on
   app exit to prevent log loss
4. Unify logError entry point: remove duplicate logError from index.ts,
   re-export from error-utils.ts with richer error context
5. Renderer log level filtering: add client-side level check in preload
   to skip IPC for filtered-out messages
6. Child logger cache + audit cleanup: cache child loggers in IPC
   handler for performance, remove redundant timestamp format in audit logger

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/renderer/src/components/ExtractorOperationHistoryModal.tsx

@@ -221,9 +221,7 @@ export const ExtractorOperationHistoryModal: React.FC<ExtractorOperationHistoryM
 
   const toggleUserFilter = (username: string) => {
     setSelectedUsers((prev) =>
-      prev.includes(username)
-        ? prev.filter((u) => u !== username)
-        : [...prev, username]
+      prev.includes(username) ? prev.filter((u) => u !== username) : [...prev, username]
     )
   }
 
@@ -274,7 +272,10 @@ export const ExtractorOperationHistoryModal: React.FC<ExtractorOperationHistoryM
               <span className="text-sm text-gray-600">
                 {isAdmin ? (
                   <span className="text-amber-600 font-medium">
-                    管理员模式：{selectedUsers.length > 0 ? `已选择 ${selectedUsers.length} 个用户` : '显示所有用户记录'}
+                    管理员模式：
+                    {selectedUsers.length > 0
+                      ? `已选择 ${selectedUsers.length} 个用户`
+                      : '显示所有用户记录'}
                   </span>
                 ) : (
                   <span>仅显示您的操作记录</span>

src/renderer/src/components/report-analysis/components/ComparisonTooltip.tsx

@@ -47,7 +47,10 @@ export const ComparisonTooltip = React.memo(
                   {user || '未分配'}:
                 </span>
                 <span className="font-medium text-slate-900">
-                  {firstMetric === 'executionTimeSecs' ? Number(userEntry.value).toFixed(1) : userEntry.value} {firstMetric === 'executionTimeSecs' ? '秒' : ''}
+                  {firstMetric === 'executionTimeSecs'
+                    ? Number(userEntry.value).toFixed(1)
+                    : userEntry.value}{' '}
+                  {firstMetric === 'executionTimeSecs' ? '秒' : ''}
                 </span>
               </div>
             )

src/renderer/src/components/report-analysis/components/CustomTooltip.tsx

@@ -40,7 +40,10 @@ export const CustomTooltip = React.memo(
                 {entry.name}:
               </span>
               <span className="font-medium text-slate-900">
-                {entry.dataKey === 'executionTimeSecs' ? Number(entry.value).toFixed(1) : entry.value} {entry.dataKey === 'executionTimeSecs' ? '秒' : ''}
+                {entry.dataKey === 'executionTimeSecs'
+                  ? Number(entry.value).toFixed(1)
+                  : entry.value}{' '}
+                {entry.dataKey === 'executionTimeSecs' ? '秒' : ''}
               </span>
             </div>
           ))}

src/renderer/src/hooks/useAppBootstrap.ts

@@ -68,6 +68,10 @@ export function useAppBootstrap() {
 
   const initializeAuth = useCallback(async () => {
     logger.info('=== Starting initializeAuth ===')
+
+    // Fetch log level early so client-side filtering takes effect
+    await window.electron.logger.fetchLevel()
+
     try {
       logger.debug('Getting computer name...')
       const computerNameResult = await window.electron.auth.getComputerName()