You are a senior software architect. Using this SRS:
[Insert SRS summary]
Generate:
1. A recommended tech stack (frontend, backend, DB, hosting).
2. A high-level system architecture diagram description.
3. A folder structure for the codebase.
4. Initial database schema (tables/models).
5. List of RESTful API endpoints with methods, routes, and brief descriptions.
Also note any assumptions made in the design.