- Introduce `setup-certs.sh` script for generating trusted local TLS certificates using mkcert.
- Add Nginx configuration files for local and Docker environments to handle HTTPS requests and proxy to backend services.
- Update `docker-compose.yaml` to include Nginx service for unified TLS entry and adjust frontend service ports for local development.
- Create `AGENTS.md` and `README.md` files to document the local HTTPS setup process and usage instructions.
- Modify backend startup commands in `README.md` for consistency with new requirements.
- Add `.gitignore` to exclude generated certificates from version control.
Add CRUD functionality for knowledge bases, including routes for listing, creating, updating, and deleting knowledge bases. Update the assistant model to include foreign key references to knowledge bases and modify the assistant configuration to handle external API keys securely. Refactor related services and routes to accommodate these changes, ensuring proper handling of credential resolution and configuration normalization.
