more data

controller/solver/placement_board.py

@@ -10,11 +10,21 @@ phases' placements as fixed/locked.
 from . import grid
 
 
+def _is_lab_room_type(room_type):
+    """
+    Real room data uses free-text room_type labels (e.g. "Computing
+    Laboratories", "electrical", "Classrooms", "Civil", "physics") rather
+    than a fixed classroom/lab enum. Any label mentioning "lab" is treated
+    as a lab room; everything else is a classroom.
+    """
+    return "lab" in (room_type or "").lower()
+
+
 class PlacementBoard:
     def __init__(self, data):
         self.data = data
-        self.classrooms = [r for r in data["rooms"] if r["room_type"] == "classroom"]
-        self.labs = [r for r in data["rooms"] if r["room_type"] == "lab"]
+        self.classrooms = [r for r in data["rooms"] if not _is_lab_room_type(r["room_type"])]
+        self.labs = [r for r in data["rooms"] if _is_lab_room_type(r["room_type"])]
 
         # busy[(day, slot_index)] -> set of keys already occupied
         self.room_busy = {}