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status: accepted
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# Unify device work under work orders

Use the work order as the single lifecycle for device fault repair, routine inspection, and preventive maintenance, distinguished by order types `1`, `2`, and `3`. Device repair requests and alarm-driven dispatches are both fault repair work orders (`1`); they must not evolve as separate maintenance-task or alarm-order lifecycles because parallel workflows produce inconsistent assignment, processing, and acceptance states.