chore: add ohlcv websocket streaming #29739

Bugbot Review

Bugbot Analysis Progress (9m 25s elapsed)

✅ Gathered PR context (8s)
✅ Completed bug detection (9m 6s)
✅ Posted analysis results (11s)

Final Result: Bugbot completed review and found 1 potential issue.

Request ID: serverGenReqId_a8bf05dc-350a-47a4-af22-834d8a3a569b

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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