contdid 0.1.1

* Resubmission to CRAN following archival on 2026-07-16 (contdid was
  archived because its dependency `ptetools` had been archived;
  `ptetools` has since been restored to CRAN as version 1.0.1).
* Require `ptetools (>= 1.0.1)` in `Imports` to prevent recurrence.
* Update `ggcont_did()` to use `ptetools`'s `autoplot()` methods in
  place of the now-deprecated `ggpte()`/`ggpte_cont()`.

contdid 0.1.0

* Initial CRAN submission.
* CCK estimation is working for case with two periods.
* Change default parametric specification to cubic polynomial.
* Bug fix for variable names.

contdid 0.0.002

* Added sanity checks for unexpected input data.

contdid 0.0.001

* Initial version.