confoundvis 0.1.0

• First release on CRAN.
• Provides visualization tools for sensitivity analysis to unmeasured confounding in observational studies.
• Includes contour-based sensitivity plots, robustness curves, Love-plot style displays, and local Taylor approximation graphics.
• Supports three sensitivity frameworks: impact threshold (Frank, 2000), partial R-squared methods (Cinelli & Hazlett, 2020), and E-value style metrics (VanderWeele & Ding, 2017).