Fix calibration population overshoot (~6% drift)#310

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fix/population-rescale-217

Commits on Mar 20, 2026

Add post-calibration population rescaling to fix ~6% overshoot

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Add tests for population rescaling and extract into testable function

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Replace synthetic rescale tests with microsimulation-based checks

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Use native microdf weighted operations in population tests

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Apply ruff formatting

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Fix test failures: use raw weights for household count, fix variable name

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Commits on Mar 23, 2026