PICOTsize 0.1.0

• Initial release.
• Sample size calculators for cross-sectional (binary and continuous), case-control, cohort, clinical trial (superiority, non-inferiority, equivalence), and diagnostic accuracy study designs, wrapping epiR as the validated computational backend.
• Shiny app with a PICOT-based design wizard, dynamic parameter forms, an interactive sensitivity plot, auto-generated Methods-section report text, and a Validation tab comparing results against Bhardwaj et al. (2024).
• Five documented methodological corrections relative to the worked examples in Bhardwaj et al. (2024): dropout formula, rounding convention, trial sidedness, and diagnostic test sample size pooling.