Full source-port parity: training, quantization, autotune, and CLI#2

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ericstj wants to merge 11 commits into

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Commits on Jun 8, 2026

Add full inference surface and model serialization (port phases 1-2)

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Phase 3: quantization authoring (product-quantizer k-means)

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Add training (Phase 4): supervised, skipgram, cbow

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Add hyperparameter autotuning (Phase 5)

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Add fasttext CLI tool for full command-line parity (Phase 6)

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Package fasttext CLI as a framework-dependent dotnet tool

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Address PR review: accurate docs, fuller CLI usage, formatting

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Address PR review round 2: hot-path allocations and autotune doc

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Address PR review round 3: quantize retrain guard, EOS accounting, bucket guard

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Address PR review round 4: full-coverage matrix init, clearer CLI help

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Make embedding selection deterministic and guard quant code-size cast

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