Run this module's integration tests across parallel Gradle test forks instead of sequentially in a single JVM.

Each fork is isolated to its own database (database name suffixed with the Gradle worker id; see MongoExtension and TestServiceContributor), so forks do not drop each other's data. Tests that toggle the mongod-global failCommand fail point cannot tolerate concurrent forks, so they are tagged @Tag("serial") and run in a dedicated single-fork integrationTestSerial task.

Fork count defaults to cpus/2 and is overridable per machine via -PitForks. The parallelism is scoped to the root module; the Spring Boot modules keep single-fork execution.

Result: the integration suite runs roughly 2-3x faster locally.