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Mateo Wang
51769a8ede
* feat(fal_ai): add Nano Banana / Gemini 2.5 Flash Image generation support Adds a FalAINanoBananaConfig for fal.ai's Nano Banana models, exposed under both fal-ai/nano-banana and fal-ai/gemini-25-flash-image (identical schema). This is the migration path for fal-ai/imagen4, which fal deprecates on 2026-06-30. The config derives the request endpoint from the model name so both aliases route correctly, maps OpenAI image params to the fal schema (n -> num_images, size -> nearest supported aspect_ratio, response_format ignored since the model returns URLs), and reuses the base fal response parser. Pricing is registered at 0.039 per image in the cost map and backup. * fix(fal_ai): tighten nano-banana routing and guard mapped params Match the specific gemini-25-flash-image / gemini-2.5-flash-image aliases instead of any model containing gemini so future fal.ai Gemini-branded models aren't silently misrouted to the nano-banana config. Guard the param mapping on the fal-side keys (num_images, aspect_ratio) so a pre-set mapped value is respected and an OpenAI key is never forwarded unmapped. * fix(fal_ai): drop non-existent gemini-2.5-flash-image routing alias fal.ai only serves the dotted-free fal-ai/gemini-25-flash-image and fal-ai/nano-banana endpoints. Routing the dotted gemini-2.5-flash-image alias built a https://fal.run/fal-ai/gemini-2.5-flash-image URL that fal.ai 404s and had no pricing entry, so spend tracking silently fell to zero. Match only the two real endpoint slugs.
