feat(cli,typescript): add generator migration system for configuration upgrades #11455
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…n upgrades This commit introduces a comprehensive migration framework that allows generator authors to publish migration packages that automatically transform generators.yml configurations during version upgrades. Key components: - Migration base package (@fern-api/migrations-base) with shared types and utilities - Migration test utilities (@fern-api/migration-test-utils) for testing migrations - CLI integration to load and apply migrations during `fern generator upgrade` - TypeScript SDK migration package with migrations for v1.0.0, v2.0.0, and v3.0.0 The system enables breaking changes to generator configuration schemas without requiring manual user intervention, improving the upgrade experience.
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This commit introduces a comprehensive migration framework that allows generator authors to publish migration packages that automatically transform generators.yml configurations during version upgrades.
Key components:
fern generator upgradeThe system enables breaking changes to generator configuration schemas without requiring manual user intervention, improving the upgrade experience.