fix: resolve HF weights cache-first so warm-cache loads nevers touch … - #127
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Every embedder's hf_hub_download/snapshot_download (and the rshf from_pretrained loaders) previously issued a HEAD request to huggingface.co per fresh process even with fully cached weights, so Hub outages/429s froze get_embedding, worst for agent integrations spawning a process per call. All sites now go through shared cache-first helpers (local_files_only=True first, network only on cache miss, with snapshot completeness validation)