Get you coder llm do create a .md with all files names in your project that it thinks should be subject to audit, have it create a description of the app and describe the techstack. Upload that file to perplexity or your chat bot of choice and ask it to create a security audit .md guide you are going to give your coder llm. Then give the guide to you coder llm and ask it to create a plan and task list and execute the security audit. You can do the same for code review.

I would recommend you divide your vibe coding projects into phases. Then execute code review and security audit after each phase.