Building an EMAIL RAG

[Yable]

Hello! I am trying to build an Email RAG wherein I can semantically search for emails. I'm very confused on the architecture/easiest way to do this with GCP. Here are the basic goals:

1. Users should be able to efficiently retrieve specific information from their emails using a smarter search system
2. The system should accurately process and understand the content of emails to provide relevant search results.
3. The system should be user-friendly and seamlessly integrate with existing email services, in this case Gmail
4. Users should experience improved productivity and reduced time spent searching for email content.

I found the following, but I'm unsure if there are other VertexAi or Google Cloud tools that can RAG emails far easier:

Basically, these are my questions:

-Can I use Gmail API to upload emails to the AlloyDB? If not, how do I import the emails?

-How do I connect a chatbot on the frontend?

-What in this photo is necessary or overkill for this small scale personal project

Any guidance, advice, direct answers or indirect answers are all greatly appreciated and welcomed. If you know of any other solutions please let me know. This is all very new to me. Thanks!