refactor: migrate from SQLite to PostgreSQL for session management and data storage

- Updated package dependencies to replace SQLite with PostgreSQL.
- Modified privacy policy to reflect the change in database technology.
- Adjusted session management in server.js to use connect-pg-simple.
- Enhanced docker-compose.yml to include PostgreSQL service with health checks.
- Added Dockerfile for multi-stage builds for development and production environments.
- Introduced .dockerignore to exclude unnecessary files from the Docker context.

README.md

@@ -16,7 +16,7 @@ Site officiel: https://lazybot.arthurp.fr
 
 - Node.js
 - Discord.js
-- SQLite
+- PostgreSQL
 - Docker et Docker Compose
 
 ## Installation
@@ -40,15 +40,41 @@ cp .env.example .env
 CLIENT_ID=VOTRE_BOT_CLIENT_ID
 CLIENT_SECRET=VOTRE_BOT_CLIENT_SECRET
 REDIRECT_URI=https://lazybot.arthurp.fr/auth/discord/callback
+NODE_ENV=production
 PORT=3000
 BOT_TOKEN=VOTRE_TOKEN_BOT
 SESSION_SECRET=UN_SECRET_LONG_ET_UNIQUE
-DB_PATH=database.sqlite
+POSTGRES_HOST=db
+POSTGRES_PORT=5432
+POSTGRES_DB=lazybot
+POSTGRES_USER=lazybot
+POSTGRES_PASSWORD=change_me
+POSTGRES_DATA_PATH=./data/postgres
+DATABASE_URL=postgresql://lazybot:change_me@db:5432/lazybot
 OWNER=VOTRE_ID_UTILISATEUR
 URL=https://lazybot.arthurp.fr
 ```
 
-4. Lancer avec Docker
+Variables d'environnement prises en charge:
+
+- CLIENT_ID
+- CLIENT_SECRET
+- REDIRECT_URI
+- NODE_ENV
+- PORT
+- BOT_TOKEN
+- SESSION_SECRET
+- POSTGRES_HOST
+- POSTGRES_PORT
+- POSTGRES_DB
+- POSTGRES_USER
+- POSTGRES_PASSWORD
+- POSTGRES_DATA_PATH
+- DATABASE_URL
+- OWNER
+- URL
+
+4. Lancer
 
 ```bash
 docker compose up -d --build
@@ -56,6 +82,26 @@ docker compose up -d --build
 
 Le dashboard est ensuite disponible sur `http://localhost:3000`.
 
+## Exemples de profils
+
+Exemple developpement (.env):
+
+```env
+NODE_ENV=development
+PORT=3002
+POSTGRES_DATA_PATH=./data/postgres/dev
+URL=http://localhost:3002
+```
+
+Exemple production (.env):
+
+```env
+NODE_ENV=production
+PORT=3000
+POSTGRES_DATA_PATH=./data/postgres
+URL=https://lazybot.arthurp.fr
+```
+
 ## Securite avant publication
 
 - Ne jamais versionner `.env`