初始化SSE服务端项目

routes/stream.js

@@ -0,0 +1,35 @@
+/**
+ * @file SSE流路由处理器
+ * @author Yk <yk_9001@icloud.com>
+ * @createdAt 2025-07-01
+ * @lastModifiedAt 2025-07-01
+ * @description 处理SSE连接建立和维持
+ */
+
+const express = require('express');
+const { v4: uuidV4 } = require('uuid');
+const { setupSSEHeaders } = require('../lib/sse');
+const clients = require('../lib/clients');
+
+const router = express.Router();
+
+router.get('/', (req, res) => {
+    const clientId = req.query.clientId || uuidV4();
+
+    setupSSEHeaders(res);
+
+    // 立即发送确认
+    res.write(`data: ${JSON.stringify({
+        status: 'connected',
+        clientId,
+        time: new Date().toISOString()
+    })}\n\n`);
+
+    clients.add(clientId, res);
+
+    req.on('close', () => {
+        clients.remove(clientId);
+    });
+});
+
+module.exports = router;