Scope :app:jacocoTestReport's denominator to the JVM-testable surface and
add a :app:jacocoTestCoverageVerification no-regression gate that shares the
same classDirectories/executionData/sourceDirectories, wired into both the
`check` lifecycle task and CI's unit-test job (part of the `CI passed` gate).
Excluded from the denominator (structurally unreachable from a JVM unit
test): Compose screen/component render code, Android framework entry points
(*Activity/*Service/Application/*BackupAgent), Hilt DI (**/di/**), and the
src/debug cold-open probe. Kept in scope: ViewModels, repositories, mappers,
DAOs, utils, richtext, mail, reporting logic, and the six WorkManager Workers.
Corrects PR #292, which excluded **/*Worker*: SyncWorker, BackfillWorker,
PruneWorker, SendWorker, ReportPurgeWorker and ReportUploadWorker are all
directly unit-tested, so they stay counted in both numerator and denominator
(only their Hilt wiring, WorkManagerModule, is excluded, via **/di/**).
Baseline: 80.21% line (4838/6032). Floor: 0.79 (~1.2% headroom) so ordinary
noise doesn't red-flag it while a real drop fails. Manual ratchet for now:
bump the floor up in the same PR when coverage rises materially.
Closes#251Closes#292
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>