[codex] Fix PR27 Android audit regressions

[sp3arm4n]

Summary

• bump Android analysis cache schema so pre-smali-tier rows cannot replay without new smali findings
• preserve JadxConfig positional compatibility by keeping extra_args in its original slot
• detect smali MODE_WORLD_* numeric mode constants passed to openFileOutput / getSharedPreferences
• write Android JSON outputs as UTF-8 explicitly

Review notes

PR #27 was already merged, so this branch is based on the merged main state and addresses follow-up review findings from that diff.

Verification

• python3 -m unittest sample.tests.test_jadx_runner sample.tests.test_smali_audit sample.tests.test_analysis_cache sample.tests.test_cli_android_audit sample.tests.test_android_pipeline
• python3 -m unittest discover -s sample/tests
• git diff --check