feat: emit x-fal-request-id and opt-in x-fal-billable-units on fal queue responses#270

tombeckenham wants to merge 2 commits into

CopilotKit:mainCopilotKit/aimock:mainfrom

tombeckenham:269-fal-queue-responses-omit-x-fal-request-id-x-fal-billable-units-so-tanstack-ai-fal-can-t-surface-unitsbilled-on-replaytombeckenham/aimock-tom:269-fal-queue-responses-omit-x-fal-request-id-x-fal-billable-units-so-tanstack-ai-fal-can-t-surface-unitsbilled-on-replayCopy head branch name to clipboard