feat(mes): Week 1 — PostgreSQL mes_core schema + Alembic migrations#139
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Introduces services/mes/ — the MES Core microservice layer for FactoryLM. Implements Walker Reynolds' 8-Week MES Bootcamp schema (Session 1) translated to our stack. Changes: - services/mes/: FastAPI skeleton + SQLAlchemy 2.x + Alembic setup - 7 tables: lines, products, work_orders, schedules, downtime_reasons, machine_states, oee_snapshots - 5 PostgreSQL enum types + 6 performance indexes - Seed: 14 downtime reason codes, 2 production lines (ISA-95 paths) - Pydantic UDTs: LineDataType, CountDispatch, OEEDataType - infra/scada/mes.Dockerfile + docker-compose.yml (port 5434) - 11/11 acceptance tests passing Closes: Mikecranesync/MIRA#319 PRD: docs/PRD-MES-CORE.md 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
services/mes/— first MES microservice in the factorylm monorepomes_core) with full Alembic migration/api/healthonly — Week 2 adds full routes)factorylm-mes-db(Postgres 16, port 5434) +factorylm-mes(port 8300)Tables created
lines·products·work_orders·schedules·downtime_reasons·machine_states·oee_snapshotsSeed data
Test plan
alembic upgrade head— clean migration, no errorspytest tests/test_schema.py -v— 11/11 passingRelated
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