_build_rows produces correct row groups, window labels, and location fields 🟩

backend/magic_plan/audit_script.py

@@ -22,4 +22,39 @@ class AuditRow:
 
 
 def _build_rows(plan: Plan) -> list[AuditRow]:
-    raise NotImplementedError
+    rows: list[AuditRow] = []
+    window_counter = 1
+
+    for floor in plan.floors:
+        rows.append(AuditRow(floor_level=floor.level))
+
+        for room in floor.rooms:
+            n_rows = max(1, len(room.windows), len(room.doors))
+
+            for i in range(n_rows):
+                window = room.windows[i] if i < len(room.windows) else None
+                door = room.doors[i] if i < len(room.doors) else None
+
+                row = AuditRow(
+                    room_name=room.name if i == 0 else None,
+                    room_width_m=room.width_m if i == 0 else None,
+                    room_length_m=room.length_m if i == 0 else None,
+                    room_area_m2=room.area_m2 if i == 0 else None,
+                )
+
+                if window is not None:
+                    row.window_label = f"W{window_counter}"
+                    row.window_location = room.name
+                    row.window_width_m = window.width_m
+                    row.window_height_m = window.height_m
+                    row.window_area_m2 = window.area_m2
+                    row.window_opening_type = window.opening_type
+                    window_counter += 1
+
+                if door is not None:
+                    row.door_location = room.name
+                    row.door_width_mm = door.width_mm
+
+                rows.append(row)
+
+    return rows