libpython2.7.a cross-builds with NDK 27.2 (API 24) after disabling
HAVE_LANGINFO_H; 30 C modules built in. On a OnePlus 13 (API 36) the
harness runs system.py -> prototype.RunApp() and imports the root modules
with results identical to macOS (66/74; the 8 failures are stub values or
dev-only scripts). py_embed_spike.py now isolates __main__ like
CPythonLauncher and reports stdlib usage.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
