Revert temp API-open used for smoke test

temp: open API for smoke test (will revert)

Unpin transformers (latest diffusers needs Dinov2WithRegistersConfig)

Add torchvision back, drop no-op pip install -e

Blackwell ZeroGPU fix: unpin torch, bump gradio sdk, move spaces import

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Delete controlnet_aux

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initial commit

Duplicate from gradio-templates/text-to-image-gradio-template