Wires an existing, active Agentforce agent to a channel by resolving a fallback queue, setting up inbound routing (either PATCH SessionHandlerId on the MessagingChannel, or an inbound RoutingFlow for Voice/Email), and optionally configuring outbound escalation. Use when the user wants to add a channel to an existing agent, connect an agent to a messaging or voice channel, route Voice or Email-to-Case to an Agentforce agent, or set up a fallback queue for an agent channel. Also applies to an existing Help Agent. The channel infrastructure must already exist — this skill adds routing. DO NOT TRIGGER when the agent does not yet exist or still needs Help Agent setup (use agen…