Implements the frozen P3_DATA_ENGINE_V1_SPEC (SHA 84bf0f217ffba51197112a6bbacbcc297058e04b5ca47f0459028fe33e0321e5). Components: engine/ producer (certify, chunkmap, parse, canonical, worker, dispatcher, aggregate, storage, journal, checkpoint, lock, evidence, manifest, run_complete, dataset_builder, cli) + engine/verify independent verifier (vparse, vaggregate, vinvariants, vcompare); headless CLI sniper-data; golden corpus G01-G17; unit/property/adversarial/mutation/legacy-diff/CLI suites. Qualification verdict: QUALIFIED (all 9 mandatory gates pass; independent verifier accepted). Spec, governance record, and legacy checkpoint untouched. G-14 NOT AUTHORIZED honored; no real-data processing, no pilot, no workload 46, no chunk 760 access.
# Compiled binaries
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*.ex5
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*.ex4
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*.dll
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# Tester artifacts
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Profiles/Tester/*.ini
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Profiles/Tester/*.set
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*.tst
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# Logs & temp
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logs/
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Temp/
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*.log
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*.csv
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# Python / ML workspace
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__pycache__/
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*.pyc
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*.npz
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*.npy
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models/*.h5
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models/*.pkl
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# OS
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Thumbs.db
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.DS_Store
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# P3-S25.1 disposable scratch (debug scripts, preserved reference copies)
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ml/p3/p3_s251_external_ingest/scratch/
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# P3-DATA-ENGINE-V1 engine outputs
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engine_output/
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qualification/tmp*/
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*.tmp |