Add fallback for legacy semiconductor lookback constant

Author: Pigbibi

application/runtime_broker_adapters.py

@@ -10,9 +10,6 @@
 import pandas as pd
 
 from quant_platform_kit.common.models import PricePoint, PriceSeries, QuoteSnapshot
-from quant_platform_kit.common.runtime_inputs import (
-    DEFAULT_SEMICONDUCTOR_ROTATION_HISTORY_LOOKBACK,
-)
 from quant_platform_kit.common.port_adapters import (
     CallableExecutionPort,
     CallableMarketDataPort,
@@ -24,6 +21,13 @@
     build_portfolio_snapshot_from_account_state,
 )
 
+try:
+    from quant_platform_kit.common.runtime_inputs import (
+        DEFAULT_SEMICONDUCTOR_ROTATION_HISTORY_LOOKBACK,
+    )
+except ImportError:  # pragma: no cover - compatibility with older packaged wheels
+    DEFAULT_SEMICONDUCTOR_ROTATION_HISTORY_LOOKBACK = 420
+
 
 def _utcnow() -> datetime:
     return datetime.now(timezone.utc)