feat: add check ELF alignment command

[LukasMod]

• script based on https://cs.android.com/android/platform/superproject/main/+/main:system/extras/tools/check_elf_alignment.sh
• tested locally with .apk files
• used in gh action feat: add validate-elf-alignment command android#23

[vercel]

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[thymikee]

what's the status here @LukasMod, do we still need this?
FYI we've added ELF alignment (as part of 16kb verification checks) as a skill to callstackincubator/agent-skills

[LukasMod]

@thymikee Yup, I had few more prio issues and switching back to this one. I want to do some tests with it locally first. I will check it, thank you

[thymikee]

Um, can't we ask users to run the script themselves since Google provides it? This is what we recommend in our agent-skills

[LukasMod]

The idea was to keep this within the CI process where we already build the .apk, so we can catch potential regressions early. Cases where the app builds successfully, but Google later rejects the upload. I wanted to avoid creating a separate build step just for that validation, since everything related to building already lives inside the rock step and this way its just faster to reuse already created files and validate them before uploading to cache.