feat(shellv2): add interactive portal support and output deduplication#1825

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KCarretto wants to merge 10 commits intofeat/shellv2-backendfrom

shellv2-interactive-backend-3518336442341510418

Commits on Feb 17, 2026

feat(shellv2): add interactive portal support and output deduplication

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fix(shellv2): handle portal publish failures by re-checking and cleaning up portal state

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chore(shellv2): define WebsocketMessage struct explicitly

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chore(shellv2): use WebsocketMessage for all ws io

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chore(shellv2): use enum for WebsocketMessage kind

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refactor(shellv2): split ws and portal handlers into methods

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feat(shellv2): use unique stream ID and OrderedReader for reliable portal comms

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feat(shellv2): support multiplayer output differentiation

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refactor(shellv2): adapt to existing OrderedReader interface

google-labs-jules[bot]
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refactor(shellv2): extract checkPortal method

google-labs-jules[bot]
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KCarretto
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