Update research_proposals.json: 160 proposals (20/domain x 8 domains)

Update phd_agents.json - 80 proposals, 243 datasets, 8 agents

Update research_proposals.json - 80 proposals, 243 datasets, 8 agents

Upload catalogs/scientific_datasets_catalog.json with huggingface_hub

Upload results/metrics.json with huggingface_hub

Upload config.json with huggingface_hub

Upload README.md with huggingface_hub

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