refactor: split casino.go, dedup helpers, remove audit docs

1 files changed, 0 insertions, 12 deletions

diff --git a/internal/admin/undo.go b/internal/admin/undo.go
index d9ef263..d352100 100644
--- a/internal/admin/undo.go
+++ b/internal/admin/undo.go
@@ -835,18 +835,6 @@ func (us *UndoStack) load() {
 	us.redo = toChanges(sd.Redo)
 }
 
-func (us *UndoStack) Clear() {
-	us.mu.Lock()
-	defer us.mu.Unlock()
-	us.history = nil
-	us.redo = nil
-	us.lastErr = nil
-	os.Remove(us.filePath)
-	log.Printf("undo: cleared history")
-}
-
-// LastError returns the error from the most recent failed Undo/Redo, or nil.
-// A nil change plus a nil LastError means the history/redo stack was empty.
 func (us *UndoStack) LastError() error {
 	us.mu.Lock()
 	defer us.mu.Unlock()