service-agentforce-channel-configure: Wire an Agentforce agent to a channel

Adds inbound routing between an existing channel and an existing Agentforce agent. The agent receives work items from the channel; a fallback queue handles overflow when the agent is unavailable.

This skill is generic — it works for any Agentforce agent, not just the Help Agent template.

Scope

In scope:

• Resolving or creating a fallback queue with the correct QueueSobject SobjectType
• Branch A (Enhanced Chat / Enhanced Messaging): deploying sessionHandlerType=AgentforceServiceAgent + sessionHandlerQueue on an existing MessagingChannel, then binding SessionHandlerId via Data API PATCH
• Branch B (Voice): assumes the phone number and PstnVoice MessagingChannel already exist (provisioned by the caller, e.g. service-helpagent-coordinate), then creating an inbound RoutingFlow (routingType: Copilot) that routes to the agent with the queue as fallback
• Branch C (Email-to-Case): inbound routing via direct case-owner assignment or an Omni-Channel RoutingFlow, plus deploying a BotEmailDefinition (Email Configuration) that links the agent to Service Email and binding it to the routing address
• Optional outbound escalation: delegating the verified agent-to-human handoff contract to service-agentforce-human-escalation-configure