/digital-marketing-pro:credential-switch Purpose Switch the active credential profile to a different brand for multi-client agency management. Validates all platform connections and reports which services are available for the target brand. Ensures the correct API keys, tokens, and environment variables are active before executing any platform operations — preventing cross-client data leakage, misrouted ad spend, or accidental operations on the wrong account. Input Required The user must provide (or will be prompted for): - Target brand slug : The brand slug to switch credentials to — must ma…