added obstacles

api/app/models/terrain.py

@@ -51,6 +51,8 @@ class LosRequest(BaseModel):
 class Obstruction(BaseModel):
     distance_m: float
     clearance_m: float
+    fresnel_radius_m: float
+    required_clearance_m: float
     type: Literal["terrain", "building", "canopy"]
 
 
@@ -60,5 +62,9 @@ class LosResponse(BaseModel):
     first_fresnel_clearance_pct: float
     worst_obstruction: Obstruction | None
     obstructions: list[Obstruction]
+    geometric_obstructions: list[Obstruction]
+    fresnel_violations_count: int
+    geometric_obstructions_count: int
+    building_obstructions_count: int
     diffraction_loss_db: float
     profile_ref: str