refactor: use sdk for addons commands

[jdodson]

Summary

Migrates addons to use the SDK

• upgrade — fixed double new HerokuSDK() (single instance)
• destroy — platform.addOn.destroyAndWait; CLI keeps the pg error copy
• wait — waitForProvisioning + new pollAddonUntilDeprovisioned helper

Type of Change

Breaking Changes (major semver update)

• Add a ! after your change type to denote a change that breaks current behavior

Feature Additions (minor semver update)

• feat: Introduces a new feature to the codebase

Patch Updates (patch semver update)

• fix: Bug fix
• deps: Dependency upgrade
• revert: Revert a previous commit
• chore: Change that does not affect production code
• refactor: Refactoring existing code without changing behavior
• test: Add/update/remove tests

Testing

SDK reads netrc, so log in with HEROKU_NETRC_WRITE=true. Throwaway app; last step is destructive. Keep the order — upgrade/attach mutate the add-on, destroy removes it.

Setup

• npm i && npm run build
• HEROKU_NETRC_WRITE=true ./bin/run login
• ./bin/run apps:create APP
• ./bin/run addons:create heroku-postgresql:essential-0 --app APP --wait — note the add-on name (ADDON)

Run each migrated command

• ./bin/run addons:wait --app APP — lists status
• ./bin/run addons:upgrade ADDON heroku-postgresql:essential-1 --app APP — plan changes
• ./bin/run addons:docs ADDON --app APP --show-url — prints docs URL
• ./bin/run addons:open ADDON --app APP --show-url — prints dashboard URL
• ./bin/run addons:attach ADDON --app APP --as MYDB — attaches, prints done, v<N>
• ./bin/run addons:destroy ADDON --app APP --confirm APP — Destroying ADDON on ⬢ APP... done

Cleanup

• ./bin/run apps:destroy --app APP --confirm APP

Screenshots (if applicable)

Related Issues

GUS work item: https://gus.lightning.force.com/lightning/r/ADM_Work__c/a07EE00002eHU1qYAG/view