Detect and flag truncated responses, raise token budget to 2048

system prompt updated

Add s3:ListBucket permission needed for GetObject polling on not-yet-existing keys

Merge remote-tracking branch 'space/main'

Add dummy @spaces.GPU function to satisfy ZeroGPU's startup check

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Untrack rag_index/faiss.index and demo_images/*.jpg from git for real this time

Remove .gitattributes -- binary paths are gitignored, uploaded via hf web UI, not git-lfs

Import spaces package before CUDA-touching imports to fix ZeroGPU reload watcher crash

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Drop pydantic pin causing conflict with gradio[mcp]'s pydantic requirement

Fix requirements.txt encoding and pin torch to a ZeroGPU-supported version

Initial commit: MedGemma medical VQA chat UI