- Added `prepareEnvironmentVariablesForShell` function to properly escape environment variables for shell usage.
- Updated various builders (Docker, Heroku, Nixpacks, Paketo, Railpack) to utilize the new function for improved handling of special characters in environment variables.
- Introduced tests to validate the handling of environment variables with various special characters, ensuring robustness in shell command execution.
- Added `shell-quote` dependency to manage quoting of shell arguments effectively.
- Introduced a new boolean column `cleanCache` in the application schema to manage cache cleaning behavior.
- Updated the application form to include a toggle for `cleanCache`, allowing users to enable or disable cache cleaning.
- Enhanced application deployment logic to utilize the `cleanCache` setting, affecting build commands across various builders (Docker, Heroku, Nixpacks, Paketo, Railpack).
- Implemented success and error notifications for cache updates in the UI.
Added a new environment variable HEROKU_STACK_VERSION that can be used to specify the desired Heroku stack version.
Updated the buildHeroku and getHerokuCommand functions to use the specified stack version, or default to 24 if the environment variable is not set.
Provided information about the available Heroku stack versions and their support details, as per the documentation from the Heroku DevCenter.
https://devcenter.heroku.com/articles/stack#stack-support-details
