feat(2498): add activities with feedbacks endpoint

[n-lbs]

📝 Pull Request Description

Brief description of changes applied

• Added the getActivitiesWithFeedbacks endpoint to retrieve activities that have at least one feedback

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Reference to an Issue, Feature, Task, User Story or another PR

• Closes [BE] Ajouter un endpoint pour récupérer toutes les activités disponnibles AVENIRS-Project#2498

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Modified areas:

• src/main/java/fr/avenirsesr/portfolio/staff/activity/application/adapter/controller/ActivityController.java
• src/main/java/fr/avenirsesr/portfolio/staff/activity/domain/port/input/ActivityService.java
• src/main/java/fr/avenirsesr/portfolio/staff/activity/domain/port/output/repository/ActivityRepository.java
• src/main/java/fr/avenirsesr/portfolio/staff/activity/domain/service/ActivityServiceImpl.java
• src/main/java/fr/avenirsesr/portfolio/staff/activity/infrastructure/adapter/repository/ActivityDatabaseRepository.java
• src/main/java/fr/avenirsesr/portfolio/staff/activity/infrastructure/adapter/specification/ActivitySpecification.java
• src/test/java/fr/avenirsesr/portfolio/activity/application/adapter/controller/ActivityControllerIT.java
• src/test/java/fr/avenirsesr/portfolio/activity/application/adapter/controller/ActivityControllerTest.java
• src/test/java/fr/avenirsesr/portfolio/activity/domain/service/ActivityServiceImplTest.java

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Target Branch

develop

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✅ Checklist

Please make sure you have addressed the following before submitting:

• a11y tested (if the PR includes frontend changes)
• Tests provided (including unit and integration tests for both frontend and backend)
• i18n handled (texts are translated)
• Performance tests
• No unnecessary code (e.g., debug logs, commented code)
• Code style and formatting rules respected (linting, conventions, etc.)
• Semantic Versioning respected
• Add to CHANGELOG.md file all properties and database change and details for the update process

[Nathan-Pignon]

Ok pour moi, merci Nicolas !