♻️ [#28] Improve and use common actions and files

[danielmursa-dev]

Fixes #28

• Improve CI tests
• Fix bug TYPE_CHECKING in accounts views
• Fix settings in base.py, dev.py, ci.py
• Move api settings in api.py
• Clean some requirements from open-api-framework
• Add SECURITY.md policy

[danielmursa-dev]

• 💥 The quick-start action fails because the index page doesn't yet exist, so it returns an error instead of a 200.
• @svenvandescheur instead the open-api-ci / Scan docker image it fails because the codeQL is not yet activated on the repo, and I can't enable it, maybe for permissions reasons I think. For the same reason I also removed temporary the .github/workflows/code-analysis.yml workflow

@danielmursa-dev the codeql doesn't work on private repo's i think. But I feel we should keep it private until have a little more progress.

[svenvandescheur]

Is this needed if you're on the correct python version (3.14)?

[svenvandescheur]

1 remark, may be ignored if incorrect, but please fix CI before merge.

[github-advanced-security]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.

[danielmursa-dev]

@svenvandescheur All checks have been passed and conflicts have been resolved 👍