feat: CLI MULTI/EXEC transaction support

- CliView: detect MULTI/EXEC/DISCARD commands
- MULTI enters transaction mode (tx> prompt, yellow)
- Commands in tx mode are queued (QUEUED + queue count)
- EXEC executes all queued commands, shows array results
- DISCARD cancels transaction
- WATCH/UNWATCH handled as non-queued tx commands
- i18n keys for tx messages (zh-CN + en)

src/i18n/locales/zh-CN.ts

@@ -142,6 +142,12 @@ export default {
     subscribed: '已订阅，等待消息...',
     monitoring: '监控中，等待命令...',
     subscribedTo: '已订阅频道: {channels}',
+    txStarted: '已开启事务，输入命令入队...',
+    txQueued: '已入队',
+    txExecuted: '事务已执行',
+    txDiscarded: '事务已取消',
+    txQueue: '队列 ({n})',
+    txPrompt: 'tx>',
   },
   slowlog: {
     title: '慢日志',