feat: TWFE weight diagnostics (twfeweights R port, re-scoped from #753) - #812

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wenddymacro:feat/twfeweights-diagnostics

Commits on Sep 14, 2026

test(twfeweights): R output-parity goldens for TWFE weight diagnostics

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yiyi
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e5930e6
feat(twfeweights): ATTGTWeightsResult / TWFEDecompositionResult containers

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yiyi
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2817248
feat(twfeweights): attgt_weights() - implicit weights on ATT(g,t)

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yiyi
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39e33c1
feat(twfeweights): decompose_twfe_weights() - FWL decomposition + balance

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yiyi
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ce209a0
feat(twfeweights): plot_twfe_weights() + full docs surface

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yiyi
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c4efb85
fix(twfeweights): address review - input validation, house helpers, parity gates

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yiyi
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930f449
fix(twfeweights): address second review round (#812)

yiyi
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yiyi
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ec975c8