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(JSON.parse(row.state) as GameState) : null;\n}\n\nexport async function saveRoom(state: GameState): Promise {\n state.updatedAt = Date.now();\n await sqlite.execute(\n \"INSERT INTO rooms (id, code, state, created_at) VALUES (?,?,?,?) \" +\n \"ON CONFLICT(code) DO UPDATE SET state=excluded.state, created_at=excluded.created_at\",\n [state.id, state.code, JSON.stringify(state), state.updatedAt],\n );\n}\n\nexport async function addEvent(\n roomId: string,\n type: string,\n data: Record = {},\n): Promise {\n const res = await sqlite.execute(\n \"INSERT INTO events (room_id, type, data, created_at) VALUES (?,?,?,?)\",\n [roomId, type, JSON.stringify(data), Date.now()],\n );\n return {\n id: Number(res.lastInsertRowid ?? 0),\n type,\n data,\n };\n}\n\n/** Fetch events created after `since` for a room, newest-last. */\nexport async function getEvents(roomId: string, since: number): Promise {\n const r = await sqlite.execute(\n \"SELECT id, type, data FROM events WHERE room_id = ? 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