get_default_ma_list

Get the account's default marketing automation (MA) destination list.

                    USAGE INSTRUCTIONS FOR LLM:
                    Use this to check whether the account has a default MA destination list configured,
                    and its current health. Newly-created eligible campaign channels (not CTR goal,
                    not Reddit) snapshot this value ONCE at creation time — it is not a live reference,
                    so a later change here never retroactively updates channels already created.

                    WHEN TO USE THIS TOOL:
                    - User asks "what's our default marketing automation list?"
                    - Checking configuration health before troubleshooting a campaign's MA destination
                    - Before deciding whether to call set_default_ma_list or clear_default_ma_list

                    RESPONSE FORMAT:
                    Returns "status" as one of:
                    - NOT_CONFIGURED: no default has ever been set
                    - AVAILABLE: a default is set and resolves correctly (listId, provider, name populated)
                    - PROVIDER_MISMATCH: the default was set for a provider the account is no longer
                      connected to (name is null; a different MA tool is connected now)
                    - DISCONNECTED: the default was set but no MA tool is connected at all (name is null)
                    - NOT_FOUND: the default list itself was deleted in the MA tool (name is null)
                    Also returns "listId" and "provider".

                    EXAMPLE: "What's the default MA list?" -> get_default_ma_list()