Initial Galileo receiver and SignalSim integration

tests/conftest.py

@@ -0,0 +1,18 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+import pytest
+
+
+@pytest.fixture(scope="session")
+def signalsim_validation_result(tmp_path_factory: pytest.TempPathFactory):
+    source_candidates = [Path("signalsim/SignalSim"), Path("../SignalSim"), Path("../signalsim/SignalSim")]
+    source = next((path.resolve() for path in source_candidates if (path / "IFdataGen" / "CMakeLists.txt").is_file()), None)
+    if source is None:
+        pytest.skip("local SignalSim checkout with IFdataGen/CMakeLists.txt is genuinely unavailable")
+    from galileo_rx.verification.signalsim_validation import validate_signalsim
+
+    output = tmp_path_factory.mktemp("signalsim_validation")
+    report, passed = validate_signalsim(source, "configs/signalsim_validation.yaml", output, mode="full")
+    return report, passed, output