feat: Command Log dialog

- New commandLogger.ts: in-memory log (max 5000 entries)
- withLog() wrapper in ipc-handlers.ts for all write commands
- CommandLog.vue: table with time/command/duration, write-only filter
- IPC: redis:getCommandLog, redis:clearCommandLog
- Ctrl+G shortcut from Sidebar
- i18n keys (zh-CN + en)

electron/main/redis/index.ts

@@ -9,3 +9,4 @@ export * from './set'
 export * from './zset'
 export * from './stream'
 export * from './server'
+export * from './commandLogger'