Bannerbear + Higgsfield AI Integration

Keep Bannerbear and Higgsfield AI aligned: use one app's marketing actions to perform the other's.

Example: use Bannerbear's "Create Image" action to perform Higgsfield AI's "Cancel a Request" action. Bannerbear has 5 actions (including Create Image, Create PDF, and Get Image); Higgsfield AI has 8 actions (including Cancel a Request, Create a Video from an Image, and Generate a Higgsfield DoP).