[P4] Project skills: new-feature, new-endpoint, new-component, verify, rename-template

[amaury901130]

Add .claude/ skills and settings (allowed read-only Gradle commands, format hooks). verify runs lint + unit + screenshot tests on changed modules. rename-template renames package/app ID/app name for a new client project.

Acceptance criteria

• An agent scaffolds a new feature with new-feature and passes verify without manual fixes

Reference: Android Base — Modernization Audit & Recommendations — section: AI-ready development