feat(mes): Week 3 — OEE calculator service#141
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Adds OEE computation engine, 60-second tick loop, fleet endpoints: - compute_oee() pure function: A×P×Q with clamp/rounding (PRD §10 AC#3, AC#5) - 30-tick alert at OEE < 60% per line (OEE_ALERT_TICKS=30) - ItemCount delta tracking from HR100 (cumulative register) - run_time_in_window() SQL: sums RUNNING seconds in last tick window - 4 new endpoints: /oee, /oee/history, /oee/summary, /kpis - oee_calculator background task wired into FastAPI lifespan - 16 new tests, zero regressions (48/48 suite) Closes MIRA#321 Generated with [Claude Code](https://claude.ai/code) via [Happy](https://happy.engineering) Co-Authored-By: Claude <noreply@anthropic.com> Co-Authored-By: Happy <yesreply@happy.engineering>
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Summary
compute_oee()pure function: Availability × Performance × Quality, all values clamped [0,1] and rounded to 4 decimal places (PRD-MES-CORE.md §10 AC#3, AC#5)machine_states, ideal_cycle_sec from active work order (defaults 1.0)GET /api/mes/lines/{id}/oee,/oee/history,/oee/summary,/kpisoee_calculatorbackground task wired into FastAPI lifespan alongsidestate_pollerTest plan
pytest tests/test_oee.py -v— 16/16 pass (OEE math, alert logic, constants)pytest tests/ -v— 48/48 pass (no regressions against Week 1+2)Closes
Closes MIRA#321
🤖 Generated with Claude Code