Update backend configuration and add new features for Bun application

Commit notes

- Upgraded `biome.json` schema version and enabled version control system support. - Modified `package.json` to update dependencies and adjust service configurations for the backend. - Introduced new Docker and Docker Compose files for backend services, including PostgreSQL and MinIO. - Added `.dockerignore` and `.gitignore` files to optimize build processes and exclude unnecessary files. - Created initial backend structure with essential configuration files, including `bun.lock`, `drizzle.config.ts`, and environment setup. - Implemented various routes for user authentication, sample management, and audio processing, enhancing the backend API functionality.

This commit establishes a comprehensive backend setup, improving development workflows and expanding feature capabilities.