Implement comprehensive versioned model registry and ClassHOW-based migration system with native :ver<> syntax support#586

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copilot/implement-model-version-migration

Commits on Sep 10, 2025

Implement ClassHOW-based migration DSL with auto-generation support

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Implement ^migration method for CLI-based populate SQL generation

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Add native :ver<> syntax support for file-per-version model organization

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Commits on Sep 11, 2025

Remove unnecessary 'is ver' trait and simplify native :ver<> syntax support

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