Add Conley (1999) spatial HAC SE on DiD/TWFE/MultiPeriodDiD (Phase 1 of spillover-conley)#411

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spillover-conley

Commits on May 11, 2026

Add Conley (1999) spatial HAC SE via vcov_type="conley" (Phase 1)

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Tighten SyntheticDiD set_params and TWFE Conley + wild_bootstrap guards

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Reject Conley on panel estimators; remove dead conley result-class wiring

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Reject Conley + survey at LinearRegression entry; align stale docstrings

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Drop overstated Bartlett PSD claim; apply indefiniteness guard to both kernels

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Document conley_* kwargs in compute_robust_vcov docstring

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Remove dead Conley scaffolding from panel estimators; align paper review

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Final P3 cleanup: remove unreachable TWFE conley auto-cluster + fix resolve_vcov_type docstring

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Align public docstrings with Phase 1 Conley contract; drop redundant guards

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