detekt 2.0 removed the top-level `build:` key:
Property 'build' is misspelled or does not exist. Allowed properties:
[comments, complexity, config, console-reports, coroutines,
empty-blocks, exceptions, naming, performance, potential-bugs,
processors, style].
The `build.maxIssues = 0` setting we had moved to the Gradle plugin DSL
(`failOnSeverity` option, defaults to Error). Emptied the YAML; rely on
detekt defaults via `buildUponDefaultConfig = true` until we have
specific rule overrides to write.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>