# 🛠️ Technology Stack

## Backend
- **Language**: Java
- **Framework**: Spring Boot (Web, Data JPA)
- **Template Engine**: Thymeleaf
- **JSON Processing**: JSON.simple
- **Concurrency**: Spring Async (`@Async`)

## Frontend
- **Structure**: HTML5
- **Styling**: CSS3, Bootstrap 5
- **Scripting**: JavaScript (Vanilla)

## Data & Storage
- **Database**: H2 (Dev) / MySQL (Prod)
- **ORM**: Hibernate (via Spring Data JPA)
- **File System**: `java.nio` for local file management

## Build & DevOps
- **Build Tool**: Maven