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+# === OpenAI Configuration ===
+OPENAI_API_KEY=sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+OPENAI_API_ORGANIZATION_ID=org-xxxxxxxxxxxxxxxxxxxxx
+OPENAI_API_PROJECT_ID=proj-xxxxxxxxxxxxxxxxxxxxx
+
+# === SMTP (Email) Configuration ===
+# Used for sending emails (e.g., verification, password resets)
+SMTP_ACCOUNT_EMAIL=your@email.com
+SMTP_ACCOUNT_PASSWORD=your-password
+
+# === JWT Configuration ===
+# Used to sign and verify authentication tokens
+JWT_SECRET_KEY=your-base64-encoded-jwt-key
+
+# === Database Configuration ===
+# Example for PostgreSQL:
+DATABASE_URL=jdbc:postgresql://localhost:5432/your_database
+DATABASE_USERNAME=your_db_user
+DATABASE_PASSWORD=your_db_password
+
+# === Cloudinary Configuration ===
+# Used for storing and serving images
+CLOUDINARY_URL=cloudinary://1234567890abcdef:abcdef1234567890@your_cloud_name