FileGRC 0.21.14

Fixes calculation performance for established workspaces. Collection-review scaffolds and previews, obligation planning and completion assessments, operating preparation, and direct-file reconciliation now reuse shared calculation work within each invocation.

Caches are discarded between operations, so later source changes and stale approval payloads still receive the normal revision and authorization checks. This patch does not change schedules, approvals, or the data model.