Update to Android API level 36, CalVer v2026.03.1 (#59)

* Initial plan

* Update to Android API level 36 and prepare CalVer release v2026.03.1

- Update build tools from 35.0.0 to 36.0.0
- Replace platforms;android-33 with platforms;android-36 (keeping 34, 35, 36)
- Update README to reflect Android SDK 16 (API levels 34-36)
- Update CalVer release version to v2026.03.1

Co-authored-by: beevelop <6891349+beevelop@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: beevelop <6891349+beevelop@users.noreply.github.com>

chore(release): update README to v2025.08.1

- Update beevelop/android version references
- Prepare for v2025.08.1 release

chore: udpate README for v2023.12.1 (#43)

chore: update README

chore: update LICENSE

feat: update to Android 12

Release v2021.06.2

Update README

Add CalVer badge