feat: M0 harness scaffold — TypeScript online multiplayer#1

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feat/m0-harness-scaffold

Commits on Jun 12, 2026

Add design spec: self-built TypeScript harness + web client

yichenhuang21
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claude
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Commits on Jun 16, 2026

Amend harness spec with OpenClaw-runtime gap analysis

yichenhuang21
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claude
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Commits on Jul 2, 2026

chore: scaffold pnpm/typescript monorepo for online harness
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feat(protocol): envelope schema + makeEnvelope/parseEnvelope
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feat(protocol): M0 event catalogue, payload schemas, error codes
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feat(server): config, app skeleton, /healthz, entry with SIGTERM drain
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feat(server): atomic writes + table file store (room/players/transcript)
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feat(server): account-less identity (token mint/hash/verify + roster helpers)
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feat(server): room code generator + in-memory Room actor (seq/broadcast/snapshot/chat)
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feat(server): RoomRegistry create/rehydrate/evict + idle sweep + peek
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feat(server): POST /api/rooms + healthz live-room count
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feat(server): WS envelope dispatch (join/chat/leave/close/ping) + heartbeat detector
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feat(server): Fastify WS gateway + M0 e2e acceptance (46 tests green)
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feat(web): Vite + React + zustand store + WS/API clients + Lobby/RoomView UI
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chore: M0 gate — 60 tests green, typecheck pass, web build pass
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