Execute Trigger

Execute a trigger with the provided event data.

Called by the Go event service when a polling channel receives new messages. Builds trigger data from the events and channel origin, then creates and submits a task for agent execution.

Args: trigger_id: The unique identifier of the trigger request: Events and channel origin data http_request: Raw request, used to verify the internal service token trigger_service: Injected trigger service

Returns: Execution result with task ID

Raises: HTTPException: If trigger not found or execution fails