ShareShelf

Runs backend unit and integration tests using Maven.

Enforce ShareShelf Material 3 design standards on Android — emerald/stone color scheme, component patterns, and mobile UX best practices.

Review current changes against ShareShelf conventions checklist. Use after making code changes or before committing.

Inspect the ShareShelf PostgreSQL database — list tables, describe schema, run safe SELECT queries, and debug data issues.

Generate TDD-first test suites for ShareShelf backend (JUnit 5 + MockK) and frontend (Vitest + RTL) code.