feature branch: downgrade to Symfony 7.4 LTS

[COil]

Q	A
Branch?	main
Cleanup?	yes
Bug fix?	no
New feature?	yes
Doc added?	yes
Tests pass?	yes
Deprecations?	yes, see the deprecations.log file.

[Copilot]

Pull request overview

Updates the project dependencies and supporting code to run on Symfony 7.4 LTS (and a lower PHP baseline).

Changes:

• Downgraded Symfony packages from 8.0 to 7.4 and adjusted PHP requirement to >=8.2.
• Refactored ListUsersAction to delegate data fetching to a dedicated data service returning a DTO, and updated the Twig template accordingly.
• Added eraseCredentials() to User and exercised it in the unit test; updated internal docs to mention the new Data/ directory.

Reviewed changes

Copilot reviewed 8 out of 11 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
tests/Unit/Entity/UserTest.php	Calls eraseCredentials() during entity test.
templates/App/Controller/ListUsersAction.html.twig	Switches view inputs to data.usersDbal / data.usersOrm and updates displayed example code.
src/Entity/User.php	Adds eraseCredentials() (with an #[\Override] attribute).
src/Data/Controller/ListUsersActionData.php	Introduces data service assembling DBAL + ORM data into a DTO.
src/Controller/ListUsersActionDto.php	Introduces DTO for ListUsersAction view data.
src/Controller/ListUsersAction.php	Injects data service and renders it as data.
composer.json	Downgrades Symfony constraints to 7.4 and lowers PHP requirement to >=8.2.
AGENTS.md	Documents the new src/Data/ directory.

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