Major update: fix wrong target, dual-strategy beam search, 19 new transforms, σ=0 achieved\n\n- Fixed wrong target for example1 (4 cells off vs real ARC task 007bbfb7)\n- Added dual-strategy beam: tries transforms on both resized AND original input\n- Added 19 new transforms: Kronecker, mirror tiles, upscale, gravity, color ops\n- Solver now achieves σ=0 on all 6 pairs of ARC task 007bbfb7"
