feat(selection): 迁移知行B1选股策略

2026-08-08 22:41:45 +08:00
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+# Zhixing B1 fixed fixtures
+
+These are small, deterministic artificial qfq OHLCV histories used to verify
+ordinary and wide-limit amplitude parameters without importing the legacy
+project at test time. The rows are calendar-spaced only to keep the fixture
+readable; the formula treats them as ascending trading observations.
+
+`multi_signal.json` documents the independent-mask orchestration case. The
+unit test forces all seven masks on one prepared target row, which is
+intentional: the legacy result set did not contain a trustworthy historical
+same-day multi-hit sample, while the new contract requires retaining all hits.