Data fixes:
- Fix critical room overlap on upper floor: og-kinderzimmer1 and
og-elternbad were overlapping by 2.5x2.0m. Adjusted room positions:
kz1 length 4->3m, elternbad y 2->3, schlafzimmer y 5->6/length 5->4
- Extend upper hallway to full building depth (y=0..10) for proper
door connectivity to all rooms
- Fix all upper hallway door positions for new layout
- Move eg-esszimmer door from south wall to west wall (correct shared
boundary with hallway)
- Remove kitchen-to-living-room door (rooms not adjacent, 1m gap)
- Fix og-flur-d5 partial misalignment with gaestezimmer
- Add Y positions for wall-mounted furniture (mirror, wall cabinets,
bathroom cabinets) so they render on walls instead of floor
- Adjust furniture positions in resized rooms (kz1, schlafzimmer)
a2b5211d30