feat: canary phase for contract upgrade orchestrator - #643
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thlpkee20-wq merged 2 commits intoJul 29, 2026
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Add a canary phase state machine to ContractUpgradeOrchestratorService that activates the new code-id against a designated shadow offering before general rollout. Changes: - New states: canary_active, hold_period, canary_passed, rolled_back - New methods: startCanary, recordCanaryMetrics, promoteCanary, rollbackCanary - Hold-period timer gated on clean metric snapshots - Auto-rollback on metric threshold breach (error_rate, p99_latency_ms, failed_tx_count) - Four new admin-gated REST endpoints: canary/start, canary/metrics, canary/promote, canary/rollback - DB migration 020: extended status CHECK, 7 canary columns, partial index - 61 tests passing across service and route suites - docs/contract-upgrade-canary.md with state diagram, API reference, threshold table, security assumptions
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Add a canary phase state machine to ContractUpgradeOrchestratorService that activates the new code-id against a designated shadow offering before general rollout.
Changes:
closes #521