docs(strategy): record reviewed core candidate save

docs/strategy-research.md

@@ -62,3 +62,5 @@ The missing public modules and sequential policy first failed actual tests. Furt
 Final focused verification is 93 new tests plus 85 existing execution tests, 178 passing in one run. The complete core suite then passed 1186 tests in 15.42 seconds, including governance, existing execution, pipeline, metrics and artifact contracts; 1168 existing-style pandas deprecation warnings remain. The new tests include seven default strategies, six separate trade/cash/NAV hand calculations plus BuyAndHold costs, a triggerable historical ATR stop, future perturbation for all seven, final signals without a next session, FIFO partial exits and same-session fees, and 100 actual optimization trials. Final targeted Ruff passed for all nine affected Python files, and strict typing passed for the four new source modules. Central clean-candidate validation and delivery state are separate receipts.
 
 Two reused read-only reviewers independently exercised causal prefixes and cash/FIFO examples and found substantive defects subsequently turned into permanent regressions. The final independent FIFO review passed after reproducing three-lot full exits, retaining real tiny balances and reconciling fee-bearing add/partial-exit/full-exit PnL with final NAV. Saved revision and central delivery status are separate evidence. These tests do not establish real data coverage, source/PIT qualification, platform task publication or formal production availability.
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+The reviewed implementation was saved and pushed as `7d3e840483d7f3b5d7b2d987c95fb79a5dc4a63b` to the existing PR #21 (https://gitea.puyuanfh.cn/ageorge156/quant_engine/pulls/21), advancing the original 3c97102f candidate. This receipt-only checkpoint does not change the tested code. One explicit central candidate refresh and `ship --ready --confirm-l3` is the next boundary; no prior CI wait was polled or resumed. Push is a save checkpoint, and does not establish merge or source admission.

handoff-factor-diagnostics.md

@@ -10,6 +10,8 @@ Pure OHLC research now uses the existing daily ledger with a post-close policy a
 
 Actual tests first failed for missing APIs. Review and additional boundary tests reproduced and closed the documented unfilled-exit, numeric, fractional-holding and FIFO defects. Final focused run178 passed (93 new plus85 existing execution), then the entire core suite1186 passed in15.42s with1168 pandas deprecation warnings. Final nine-file Ruff and four-module mypy passed. Both reused reviewers passed their final relevant scopes; the final FIFO review independently reconciled fee-bearing add/partial-exit/full-exit PnL with final NAV and retained real tiny balances. The pure-library increment is code complete; clean-candidate save/delivery receipts follow at the final boundary. The broader platform/M0–M5 scope remains unfinished. Commit-budget continuation: this same delivery now includes an independently tested seven-strategy calculation increment plus necessary saved-revision receipts; preserve reviewed history rather than split or rewrite the delivery. Next: complete this new core candidate's applicable review and one central delivery boundary, then bind the saved source in the platform candidate task/artifact path without opening formal run/optimize.
 
+The reviewed implementation was saved and pushed as `7d3e840483d7f3b5d7b2d987c95fb79a5dc4a63b` to the existing PR #21 (https://gitea.puyuanfh.cn/ageorge156/quant_engine/pulls/21), advancing the original 3c97102f candidate. This receipt-only checkpoint does not change the tested code. One explicit central candidate refresh and `ship --ready --confirm-l3` is the next boundary; no prior CI wait was polled or resumed. Push is a save checkpoint, and does not establish merge or source admission.
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 ## Previous factor-diagnostics increment
 
 Delivery: quant-os-factor-diagnostics-20261004; branch codex/quant-os-factor-diagnostics-20261004. Base is remote-confirmed origin/main 861c1e97a8bf1c3e962c4cd1ee88ef58e6b9ddd5. This is the independent core-repository increment consumed by the existing platform delivery/Draft #102, not a new platform branch or chat. Root in chat 01a0bc8f-dcaf-7452-9ab3-3215df6dfa97 is the sole core code/Git writer; reviewers are read-only. Primary, merged retrospective-v2 and old Alpha158 worktrees and their user files remain untouched.