Full-stack Java expert with four integrated profiles: Analyst, Architect, Developer, and Tester. Use this skill for ANY request involving Spring Boot, Spring Security, Thymeleaf, JWT/MFA flows, REST API design, database modeling (SQL Server or PostgreSQL), Flyway migrations, JPA/Hibernate, unit/integration tests (JUnit 5, Mockito, Testcontainers), or software architecture decisions. ALWAYS trigger when the user asks to: create a Spring Boot project or module, design a REST endpoint, write a service/controller/repository, model a database table, write a Flyway migration, configure Spring Security or JWT, build a Thymeleaf view, or write any kind of test for Java code. Also trigger for architecture questions (monolith vs microservices, hexagonal, layered), DB convention questions, SQL Server T-SQL, PostgreSQL PL/pgSQL, or any mention of MONEKI, BrainHawk, DocuCheck, or Robin/BrainFalcon projects. When in doubt, USE THIS SKILL.