Refactor Project Model: Introduce File-Based Persistence

[danielfilipealmeida]

Description:

We need to refactor the Project Swift model to introduce a new class capable of handling file-based loading and saving of projects. The app should be able to manage only one project at a time, with options to load and save that project.

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Task Breakdown:

1. Remove the Current Project Swift Model

   • Eliminate the existing Project model that is currently used.
   • Ensure all associated references in the codebase are updated or removed.

2. Introduce New Project Class

   • Implement a new Project class that will manage file-based persistence.
   • This class should be able to:
     • Load a project from a file.
     • Save a project to a file.
   • Only one project should be accessible at a time.

3. Implement Project Loading

   • Create a function to load the project from a file.
   • Handle file not found or invalid file errors.

4. Implement Project Saving

   • Create a function to save the current project state to a file.
   • Ensure overwriting of existing project files is handled.

5. Refactor Code for Single Project Access

   • Modify the app's logic to ensure it only handles one project at a time.
   • Ensure UI components (if any) reflect this change.

Acceptance Criteria:

• The Project model is removed from the codebase.
• A new Project class can load and save projects to file.
• The app successfully handles only one project at a time.
• All tests are updated or added to reflect the changes.