hcinfer 0.1.1

• Added the PublicSchools2 dataset with 2024 per capita income, 2025 public school expenditure per student, a Southern-region indicator, and complete variable and source documentation.
• Standardized the federal district name in PublicSchools from Washington DC to District of Columbia.

hcinfer 0.1.0

hcinfer 0.0.0.9000

• Added the initial development version with HC covariance estimators, normal Wald inference, S3 output, and the PublicSchools dataset.
• plot() now supports vcov_hc() objects, producing leverage-versus-adjustment-factor graphics for inspecting the relationship between h_t and g_t.
• summary() now prints formal test results, confidence interval checks, and optional emoji markers to improve interpretation of robust inference output.
• summary() now keeps displayed test_result decisions consistent with numeric p-values when p-values are displayed as <0.001.
• Added tests() as a formal extractor for coefficient-level Wald test results. The function mirrors the API of confint(): an optional parm argument selects coefficients by name or position, and an optional alpha argument recomputes the reject column without affecting the stored p-values or test statistics.