WhatsApp inbox creation now shows Embedded Signup for Chatwoot Cloud accounts only when the new `whatsapp_embedded_signup_inbox_creation` feature flag is enabled. Cloud accounts without the flag go directly to manual WhatsApp Cloud API setup, while self-hosted installations with a configured WhatsApp App ID retain their existing Embedded Signup flow. --------- Co-authored-by: Muhsin <12408980+muhsin-k@users.noreply.github.com>