Restructure for production embedding — all Go source now under pkg/php/
with locales embedded alongside. Entry point at cmd/core-php/ imports
forge.lthn.ai/core/php/pkg/php. Prepares for Gin router frontend and
native binary production deployment.
Co-Authored-By: Virgil <virgil@lethean.io>
AddPHPRootCommands registers commands directly on root so
the standalone binary uses `core-php dev` not `core-php php dev`.
AddPHPCommands remains for use inside the `core` CLI.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>