PEN → Base token migration (pallet, contracts, attestor, monitor, governance)#558

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feat/pen-base-migration

Commits on Jul 7, 2026

docs: Add PEN-to-Base migration PRD, ADR-001 and token standards decision record
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pallets: Add token-migration pallet for one-way PEN migration to Base
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contracts: Add PEN token and MigrationVault for Base
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runtime: Wire token-migration pallet into the Pendulum runtime
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contracts: Add governance stack and deployment scripts
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attestor: Add attestor daemon for the PEN migration
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monitor: Add independent invariant monitor for the PEN migration
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docs: Add PEN migration operational runbooks (key compromise, outage, invariant breach, pause, runtime upgrade, attestor rotation)
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pallets: Add benchmarks for the token-migration pallet
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security: Fix internal-review findings across vault, attestor and monitor
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contracts: Add .env.example documenting deployment parameters
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docs: Add implementation overview of the PEN migration work across both repos
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security: Fix round-2 audit findings (zero-address DoS, rotation bypass)
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security: Fix round-3 audit findings (sweep vs in-flight migrations)
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docs: Update overview with round-3 review and current test counts
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Commits on Jul 8, 2026

security: Fix round-4 audit findings (threshold-cut strand, cap window)
ebma
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Commits on Jul 10, 2026