working version

python_app/models/run_config_schema.py

@@ -223,10 +223,15 @@ class PreprocessModel:
 
 @dataclass(slots=True)
 class GprTxGeometryModel:
-    """One transmitter geometry record keyed by output switch position."""
+    """One transmitter geometry record keyed by output switch position.
+
+    y_m / z_m default to 0 so 1D antenna layouts keep their pre-3D semantics.
+    """
 
     output_pos: int = 0
     x_m: float = 0.0
+    y_m: float = 0.0
+    z_m: float = 0.0
 
 
 @dataclass(slots=True)
@@ -235,6 +240,8 @@ class GprRxGeometryModel:
 
     input_pos: int = 0
     x_m: float = 0.0
+    y_m: float = 0.0
+    z_m: float = 0.0
 
 
 @dataclass(slots=True)