Execute an AI Workflow Engine workflow with provided inputs.

This endpoint executes a specific AWE workflow with the provided inputs.
It supports different input types (file upload, text instruction, or trigger)
and allows custom parameters for workflow steps.

Parameters:

• request: HTTP request object containing authentication information
• awe_uuid: UUID of the AWE workflow to execute
• name: Optional name for this execution
• file: Optional file input for workflows that require file processing
• instruction: Optional text instruction for workflows that accept text input
• initial_input: Optional initial input for the workflow
• workspace_uuid: Optional workspace UUID for context
• parameters: Optional JSON string containing custom parameters for workflow steps

Returns:

• Dictionary containing execution status, UUID, and cost information

Raises:

• HTTPException: If workflow not found, execution fails, or insufficient credits