Enhancement: Complete Documentation of Platform Test Scenarios

### Background Information

The purpose of this documentation is to establish a Master Plan for the creation and formalization of all test scenarios (success and failure) covering the main features of the platform. This documentation will serve as the fundamental basis for the implementation (automation) of future tests.

### Steps to Reproduce

Each scenario must be structured as follows:
Feature: Must encapsulate a specific functionality (example: “Feature: User Authentication”).

Scenario: The clear and concise name of the test case (example: “Scenario: Attempt to log in with an invalid password”).
- Given: The preconditions necessary to start the test.
- When: The action performed by the user or the system.
- Then: The expected result that validates the success or failure of the action.

### How

Required Documentation Standard

To ensure that scenarios are consistent and easy to convert into automated tests, it is mandatory to follow the Gherkin (BDD) standard.

Ensure the development of success scenarios (main and alternative flows) and failure/exception scenarios (field validations, invalid data, etc.) for the defined scope.

### Expected Behavior

Documentation is essential for establishing a standardized testing framework, facilitating product team review, and serving as a requirement for future test automation.

The final document should be created on the Notion page: https://www.notion.so/aletheiafact/Documentation-scenarios-tests-27e72810e14180c8aacaf656af661327