Initial Galileo receiver and SignalSim integration

tests/unit/test_config.py

@@ -0,0 +1,20 @@
+import pytest
+
+from galileo_rx.config import ReceiverConfig, load_config
+
+
+def test_default_configuration_is_valid() -> None:
+    ReceiverConfig().validate()
+
+
+def test_e1c_long_integration_requires_secondary_handling() -> None:
+    config = ReceiverConfig()
+    config.acquisition.coherent_integration_ms = 8.0
+    with pytest.raises(ValueError, match="secondary-code"):
+        config.validate()
+
+
+def test_yaml_load() -> None:
+    config = load_config("configs/e1_default.yaml")
+    assert config.rf.sampling_frequency_hz == 16.368e6
+