* Implement checks for existing primary keys before adding new ones.
* Drop auto-generated primary keys if they exist.
* Add tests for primary key existence and column size specifiers.
* Improve type conversion handling for PostgreSQL compatibility.
* Update script execution to sort by Priority, Sequence, and Name.
* Add functionality to skip symbolic links during directory scanning.
* Improve documentation to reflect changes in execution order and features.
* Add tests for symlink skipping and ensure correct script sorting.
