- Use substring instead of replace for path cleanup (anchored, no double-strip risk)
- Document that corner_decorations ignores x/z offsets (by design)
- Add x_offset/z_offset to PositionedBlock for multi-block furniture clusters
- Furniture items now spread across 2-3 positions (matching original Java code)
- Offsets multiplied by inward direction for correct corner orientation
- Fix has_ceiling_chain: only oubliette has ceiling chains (was true for all 6)
- Fix firstCornerSpecial: oubliette cauldron uses x/z offset +1 (inward diagonal)
- Update parser to read x_offset/z_offset (defaults to 0)
- BUG-001: CRYPT bottom_row had unreachable mossy_stone_bricks (same f variable
makes mossy_cobblestone guard trigger first). Fixed weights: 0.20/0.10/0.70
- BUG-003: ICE ceiling ice stalactites (y_offset=10) were missing from JSON
- BUG-002: ICE snow corner layers use middle value (3) as compromise since
DecorationConfig.PositionedBlock doesn't support random_property
