Zero-downtime expand/contract migration for the tenant_id PK widening (#33)#64

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iarunsaragadam merged 8 commits into

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feat/zero-downtime-migration

Jun 21, 2026

Commits on Jun 21, 2026

postgres: split PK widening into expand/contract phases
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docs: document the two-phase expand/contract migration runbook
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postgres: run migrations on a dedicated connection under a bounded lock
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cmd/workspace: flag-based migrate subcommand and bounded boot migration
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postgres: test expand-only interop, contract-pending WARN, lock bounds
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config: default GATEWAY_POSTGRES_AUTO_MIGRATE to false (opt-in)
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cmd: handle a contended migration lock gracefully on boot
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docs: document opt-in auto-migrate and keep docker compose self-migrating
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