fix: close prior REPL websocket on reconnect to stop duplicated output#230
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tehn
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May 20, 2026
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what
replConnectwas opening a new WebSocket without closing prior connections. Each surviving socket kept receiving stdout and REPL output appeared duplicated (2x after one restart, 3x after two, etc.). This PR adds areplDisconnectaction that closes the existing socket (if it exists) and detaches its handlers before dialing a new one.