v1.2.5: Antigravity-dedicated architecture, removal of legacy root IDE clutter, and first-class Native Android & KMM/KMP positioning

Antigravity-dedicated architecture, removal of legacy root IDE clutter, and first-class Native Android & KMM/KMP positioning

• Google Antigravity Exclusive Runtime & Default Host (agents/scripts/wizard/questions.py, agents/rules/harness-rules.md, agents/tool-adapters/AGENTS.md.template): Make antigravity the default and sole interactive AI host choice in the setup wizard (i14 defaults automatically to ["antigravity"]), unify canonical rules and command catalogs around --host antigravity and Review Protocol V2 (review complete / review finalize), and remove all non-Antigravity root files and dot-directories (CLAUDE.md, CODEX.md, QWEN.md, .clinerules, .goosehints, .windsurfrules, .claude/, .cursor/, .windsurf/, .roo/, .amazonq/, .continue/, .junie/, .kilocode/, and .github/copilot-instructions.md) while retaining internal ownership-manifest compatibility shims for clean updates.
• First-Class Native Android & KMM / KMP (Kotlin Multiplatform Mobile) Positioning (README.md, pyproject.toml, CITATION.cff, docs/compatibility-matrix.md, docs/quickstart.md, docs/tool-support.md, docs/reviewer-models.md): Highlight comprehensive support for both Native Android (Kotlin, Java, Jetpack Compose, XML) and KMM/KMP (commonMain platform purity guards, androidMain/iosMain expect/actual contracts, unified .kt/.java/.xml/iOS .swift symbol graph & task-context, and :shared/:composeApp/:androidApp topologies).
• Descriptive Conventional Commit Release Discipline (scripts_dev/release_version.py, scripts_dev/publish_validated_release.py, AGENTS.md): Support chore(release): vX.Y.Z — <headline> release commit subjects and split functional/documentation commits from release version-bump commits so repository file listings always display descriptive engineering commit messages.

Full Changelog: v1.2.4...v1.2.5