- Introduced Pydantic schemas for profitability calculations in `schemas/calculations.py`.
- Implemented service functions for profitability calculations in `services/calculations.py`.
- Added new exception class `ProfitabilityValidationError` for handling validation errors.
- Created repositories for managing project and scenario profitability snapshots.
- Developed a utility script for verifying authenticated routes.
- Added a new HTML template for the profitability calculator interface.
- Implemented a script to fix user ID sequence in the database.
- Implemented role-based access control for project and scenario routes.
- Added authorization checks to ensure users have appropriate roles for viewing and managing projects and scenarios.
- Introduced utility functions for ensuring project and scenario access based on user roles.
- Refactored project and scenario routes to utilize new authorization helpers.
- Created initial data seeding script to set up default roles and an admin user.
- Added tests for authorization helpers and initial data seeding functionality.
- Updated exception handling to include authorization errors.
