Let a Working Folder delete a basename.

CheckDNS needs that to Remove Domain without a second storage path.

Co-authored-by: Cursor <cursoragent@cursor.com>

webdav_test.go

@@ -56,6 +56,13 @@ func TestWebDAVReadWriteListExists(t *testing.T) {
 				return
 			}
 			w.WriteHeader(http.StatusOK)
+		case http.MethodDelete:
+			if _, ok := store[path]; !ok {
+				http.NotFound(w, r)
+				return
+			}
+			delete(store, path)
+			w.WriteHeader(http.StatusNoContent)
 		case "MKCOL":
 			dirs[strings.TrimSuffix(path, "/")] = true
 			w.WriteHeader(http.StatusCreated)
@@ -102,6 +109,13 @@ func TestWebDAVReadWriteListExists(t *testing.T) {
 	if !found {
 		t.Fatalf("list: %+v", entries)
 	}
+	if err := folder.Remove("note.txt"); err != nil {
+		t.Fatal(err)
+	}
+	ok, err = folder.Exists("note.txt")
+	if err != nil || ok {
+		t.Fatalf("after remove: ok=%v err=%v", ok, err)
+	}
 }
 
 func TestWebDAVOpenMissingIsNotExist(t *testing.T) {