Document fp32 recognizer + browser backend guidance

Add fp32 recognizer for browser (wasm XNNPACK full delegation)

Card: correct the GPU node counts — the previous figures added the XNNPACK fallback partition to the GPU delegate partition

Card: add a measured Performance table (Pixel 8a, benchmark_model GPU+CPU), naming the runtime for each row

Add minimal usage snippets (Kotlin + Python)

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Upload ppocrv5_dict.txt with huggingface_hub

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initial commit