feat: CLI SUBSCRIBE/MONITOR streaming mode

- New pubsub.ts: startSubscribe/stopSubscribe/startMonitor/stopMonitor
- IPC: redis:subscribe, redis:unsubscribe, redis:monitor, redis:monitorStop
- Streaming messages pushed via webContents.send
- Preload: onSubscribeMessage/onMonitorMessage callbacks
- CliView: detect SUBSCRIBE/PSUBSCRIBE/MONITOR, switch to streaming mode
- Stop button with pulsing indicator (green=subscribe, yellow=monitor)
- Real-time message display with timestamps
- Auto-cleanup on unmount
- i18n keys (zh-CN + en)

ROADMAP.md

@@ -20,7 +20,7 @@
 - [x] **多连接并行** — 同时打开多个连接，各自独立标签页
 - [x] **Monaco 编辑器** — 替换 StringEditor 的 textarea，支持 JSON 折叠/展开/语法高亮
 - [x] **Redis 命令自动补全** — CLI 输入时智能提示（基于 commands.js 命令数据库）
-- [ ] **CLI SUBSCRIBE/MONITOR** — 实时消息流 + MONITOR 命令流 + 停止按钮
+- [x] **CLI SUBSCRIBE/MONITOR** — 实时消息流 + MONITOR 命令流 + 停止按钮
 - [ ] **CLI MULTI/EXEC** — 事务模式支持
 - [ ] **Stream 消费者组** — XINFO GROUPS / XINFO CONSUMERS 展开表格