[GENAI. ONBOARDING ASSISTANT] Intriduce a genai-powered assistanto to communicate with ODD platform tech doc

[RamanDamayeu]

Initial version would be used as a assistant to get basic information about platform through the search panel.

Solution should include:

1. RAG Backend app (with built-in vector store)
2. Scrapper for tech docs: gitbook, blogs, github issues/readme/conversations/code
3. Communication between RAG and Platform via RESTful API
4. Bedrock as a LLM provider

Process to build:

1. During release of new version of an assistant we update vector store
2. During run-time RAG uses static data