Change the api37_e2e.py emulator launch from `-gpu swiftshader_indirect`
to `-gpu auto-no-window`. For a LOCAL run the host GPU is faster and
auto-no-window is the mode that boots cleanly on this machine; CI's
e2e-preview keeps swiftshader_indirect for headless-runner determinism.
This is now the single deliberate divergence from e2e-preview; the image
string, provisioning, boot sequence, and every other emulator flag stay
in lockstep. Updated the script comments/docstring, SKILL.md, CLAUDE.md,
and the build.gradle.kts managed-devices comment to document it.
Syntax-only change (python -m py_compile clean); emulator not run.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>