Implement Rec - Phase 1

docs/reviews/2026-09-02-code-review.md

@@ -747,11 +747,11 @@ set-membership.
 def exception_detail(exc: BaseException) -> str:
     """Internal-only root-cause text for AppError.detail. Never user-facing."""
 
-def filesystem_error[E: AppError](
-    error_type: type[E], message: str, exc: OSError, *, suggestion: str
-) -> E:
+
+def filesystem_error[E: AppError](error_type: type[E], message: str, exc: OSError, *, suggestion: str) -> E:
     """Build a filesystem AppError with a generic message and the path on detail."""
 
+
 # src/transcription/ui/components/error_presenter.py
 def display_failure_detail(error_detail: str | None) -> str | None:
     """Sanitize persisted failure detail for UI rendering (HIGH-01)."""