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archive DAPT-based 0.8 run (crown F1 0.6159@step 600): sft/ -> sft-0.8/

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archive DAPT-based 0.7 run (crown F1 0.6851@1350): sft/ -> sft-0.7/

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archive DAPT-based 0.6 run (eval F1 0.6641@2100): sft/ -> sft-0.6/

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archive DAPT-based 0.5 run (crown 0.6812): sft/ -> sft-0.5/

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archive SFT-on-base runs under norberto/

Copy sft-0.7/ to sft/ (live hero-extension run folder; archive intact)

archive sft/ quality>=0.8 run to sft-0.8/

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Remove sft/ after archiving to sft-0.7/ (adds landed in prior commit)

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archive sft/ run (quality>=0.6) to sft-0.6/

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Rename sft/ to sft-0.5/ (single-commit local move)

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