Cache Magisk app ID for performance

native/jni/zygisk/deny/deny.hpp

@@ -25,6 +25,7 @@ void revert_daemon(int pid, int client);
 void revert_unmount(int pid = -1);
 
 extern std::atomic<bool> denylist_enabled;
+extern int cached_manager_app_id;
 
 enum : int {
     ENFORCE_DENY,

native/jni/zygisk/deny/utils.cpp

@@ -276,6 +276,7 @@ static void inotify_handler(pollfd *pfd) {
     } u{};
     read(pfd->fd, u.buf, sizeof(u.buf));
     if (u.event.name == "packages.xml"sv) {
+        cached_manager_app_id = -1;
         exec_task([] {
             mutex_guard lock(data_lock);
             rebuild_map();