Micronaut — Database migrations (Flyway)

Apply Flyway migration guidelines for Micronaut.

What is covered in this Skill?

• micronaut-flyway with JDBC/Hikari and database drivers
• Versioned SQL under src/main/resources/db/migration
• flyway.datasources.* (per-datasource) configuration in YAML/properties
• Tests with Testcontainers and real migration chains
• Coordination with @511-frameworks-micronaut-jdbc and @512-frameworks-micronaut-data

Scope: Apply recommendations based on the reference rules and good/bad examples.

Constraints

Before applying Flyway or SQL changes, ensure the project compiles. After improvements, run full verification.