Chore/update cicd process

[timo282]

• update CICD workflow to automatically write release notes from markdown into GitHub release
• update CICD trigger: deployment must be triggered manually now
• update docs trigger: docs are generated by CICD workflow but can also be triggered manually
• add protection for CICD and docs workflow: workflows can only be triggered from the main branch

[timo282]

Note: dev branch can be deleted after this PR

[Copilot]

Pull Request Overview

Updates the CI/CD and documentation pipeline to streamline release note management, enforce branch protections, and enable manual triggers.

• Restructure MkDocs navigation to list release notes per version.
• Add individual Markdown release notes and remove large inlined notes.
• Enforce main-branch guards and manual dispatch in both Docs and CICD workflows, and integrate release-notes into the GitHub Release step.

Reviewed Changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
mkdocs.yml	Restructured nav to include nested versioned release-notes entries
docs/release-notes/v*.md	Added per-version release notes and a template file
docs/release-notes.md	Removed inline release notes content; added welcome message
.github/workflows/docs.yml	Replaced push trigger with workflow_dispatch and main-branch guard
.github/workflows/cicd.yml	Removed push trigger, added branch check, wired body_path for releases, and added create-docs job

[mo374z]

Basst so :)