feat(api): add sse

[hongcha98]

No description provided.

[a-wing]

I have a question? What is : ?

curl http://localhost:7777/api/sse/streams
data: [{"id":"web-0","createdAt":1725872657777,"publish":{"leaveAt":0,"sessions":[]},"subscribe":{"leaveAt":1725872657777,"sessions":[]}}]

data: [{"id":"web-0","createdAt":1725872657777,"publish":{"leaveAt":0,"sessions":[{"id":"0642eefec3d96869072bee7426315648","createdAt":1725872661566,"state":"new"}]},"subscribe":{"leaveAt":1725872657777,"sessions":[]}}]

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data: []

data: []

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