[codex] guard crypto equity combo exits and rotation config

[Pigbibi]

Summary

• Apply BTC Z-Score exit exposure to the combo BTC target instead of leaving it only in metadata.
• Filter trend-only kwargs away from BTC DCA and avoid duplicate DCA kwargs that caused plan fallback.
• Pass trend rotation controls through the combo leg and add regression coverage for Z-Score and rotation refresh lock behavior.

Test Plan

• PYTHONPATH=src:/Users/lisiyi/Projects/QuantPlatformKit/src python3 -m pytest -q tests
• python3 -m ruff check .
• PYTHONPATH=/Users/lisiyi/Projects/QuantPlatformKit/src:/Users/lisiyi/Projects/CryptoStrategies/src python3 -m pytest -q tests/test_runtime_config_support.py tests/test_strategy_loader.py tests/test_strategy_runtime.py tests/test_notify_i18n.py in BinancePlatform
• PYTHONPATH=src:scripts python3 scripts/research_crypto_combo_backtest.py --json-output

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Forward the strategy date into the DCA overlay

When zscore_exit_allow_outside_execution_window is set to False, the downstream BTC DCA plan decides whether the Z-score overlay is in-window from its as_of argument (kwargs.get("as_of")); this entrypoint now forwards the flag but still never forwards ctx.as_of, so the DCA code falls back to the wall-clock date. Backtests/replays or delayed evaluations can therefore skip or apply the combo BTC exit based on today rather than the StrategyContext date; pass as_of=ctx.as_of with the DCA-related kwargs.

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