Refactor configuration and security features for improved development experience

- Updated the .env.example file to reflect a development environment setup with enhanced secret key requirements and local host settings.
- Modified the Docker Compose configuration to enhance security with read-only settings and no-new-privileges options.
- Updated requirements.txt to pin package versions for better dependency management.
- Enhanced the FastAPI application to include dynamic OpenAPI and documentation URLs based on the environment.
- Implemented session versioning in JWT tokens to improve security and user session management.
- Added new validation for user roles and password strength in schemas.
- Improved email sending logic to handle recipient lists more robustly and added logging for SMTP operations.
- Updated dashboard and profile templates to reflect new features and improve user experience.

app/services/session_tokens.py

@@ -0,0 +1,8 @@
+from sqlalchemy.orm import Session
+
+from app.models.user import User
+
+
+def invalidate_user_sessions(user: User, db: Session) -> None:
+    user.session_version = (user.session_version or 0) + 1
+    db.commit()