fix(build): compile lzma CpuArch.c for LzFind CPU feature probes

lzma v26's LzFind references CPU_IsSupported_AVX2/SSE41 on x86; strict
Windows linking needs CpuArch.c compiled in (no-op on ARM builds).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: sunnylqm

binding.gyp

@@ -22,6 +22,7 @@
         "HDiffPatch/libHDiffPatch/HDiff/private_diff/window_diff/window_matcher.cpp",
         "HDiffPatch/libHDiffPatch/HPatchLite/hpatch_lite.c",
         "HDiffPatch/libHDiffPatch/HDiff/private_diff/match_inplace.cpp",
+        "lzma/C/CpuArch.c",
         "lzma/C/LzFind.c",
         "lzma/C/LzmaDec.c",
         "lzma/C/LzmaEnc.c",