TODO: Remove remaining IIFEs in ACP UI; prefer plain components/helpers.
Add git_update.sh script to update the forum and core.
Tag the release as latest
For update, make three tabs: insite, cli, ci/di and add explanation

Progress (last 2 days):
- Reached 100% test coverage across the codebase.
- Added extensive Feature and Unit tests for controllers, models, services, and console commands.
- Added coverage scripts and cleanup (tests for update/version flows, system update/status, attachments, forums, roles, ranks, settings, portal, etc.).
- Hardened tests with fakes/mocks to cover error paths and edge cases.

TODO: Make the PHP binary path configurable for updates if the default PHP is outdated (ACP -> System).
CI/CD: Runner must have PHP 8.4+ as the default CLI interpreter.
KeyHelp: `keyhelp-php-domain` can select the PHP version based on the domain of the script location.
KeyHelp: `keyhelp-php-domain` is a Pro feature; on non-Pro setups we must fake the command.