feat(46): devops doc implementation

[Nathan-Pignon]

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📝 Pull Request Description

Brief description of changes applied

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

Refs avenirs-esr/avenirs-workflows#46

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Documentation

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Target Branch

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Additional Notes

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Known Limitations or Side Effects

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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 detaiils for the update process

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