Author	SHA1	Message	Date
Chiki Bum	cdf01aaabb	P3-DATA-ENGINE-004: source-grammar correction + re-qualification (QUALIFIED) - spec 1.1.0 controlled amendment (Appendix C): G_TICKSTORY_MT5 six-col YYYYMMDD,HH:MM:SS,bid,ask,last,volume; compact timestamp; mandatory volume; last preserved via source-preservation sidecar (spec 8.6; CTS_V1 unchanged; G-4/G-5 intact); SHA effbaf2624cd46137c22a246fdabff4067052807b6b6224be464366bec4745d9 (machine-verified) - implementation: grammar registry, source_grammar config identity + fail-closed validation, compact timestamp parse, _parse_chunk_tickstory, preservation serialization + sidecars, certificate grammar_id + compact sniffing, init cert/config mismatch BLOCK, independent verifier v_parse_chunk_tickstory + preservation ids, evidence + verify_dataset preservation checks; ENGINE_VERSION 1.1.0, PARSER_V1.1 - CLI defect repair: status/resume on run-less dir exit 4 BLOCKED without traceback (P3-DE-003 NEW_ENGINE_DEFECT) + regression tests - qualification: unit, golden G01-G17, SG01-SG15 + e2e, property, adversarial, mutation 8/8, independent verifier dataset+run-complete ACCEPTED, legacy diff 0 unresolved legacy untouched, dataset-builder determinism, CLI E2E; VERDICT QUALIFIED - G-14 unchanged BLOCKED/NOT AUTHORIZED; no real-data ingestion; no workload 46; no chunk 760+; legacy checkpoint 759/18442355762 untouched	2026-09-07 17:34:57 +07:00
Chiki Bum	699b781ed2	P3-DATA-ENGINE-001 GOV-CLOSE: governance decision record + approved spec amendments ... G-9/G-10 numbering resolved in spec section 29 (G-9=Aggregation Semantics, G-10=Partial-Bar Policy). Clarifications recorded: G-14 remains NOT AUTHORIZED after design freeze; G-6 approval does not define the actual UTC offset value (source_tz_offset_minutes established at source init); G-12 legacy freeze is reference-only and does not make the legacy checkpoint a new-engine checkpoint. Status: DESIGN FROZEN; implementation AUTHORIZED; pilot AUTHORIZED after golden-corpus qualification only; full 34 GB reprocessing NOT AUTHORIZED; legacy checkpoint unchanged (last chunk 759).	2026-09-07 13:16:34 +07:00