Make tech stack update plan

As time goes, the old tech stack of sarxarray needs some updates.
The followng points should be considered. And each point needs to become a spearate issue

• Python dependencies: uv seems to be a much faster and easier option than mamba.
• Documentation: mkdocs has issue with supporting version 2. -> consider go with the classic ReadthDoc + sphinx? Zensical seems to be risky for long-term
• Documentation brokean link catch up -> lychee
• If still using MkDocs, consider autodoc for API documentation?

Review the four proposed workstreams: Python dependency management with uv, documentation tooling, broken-link checking with lychee, and API documentation with autodoc. Split each decision into a separate issue, and consider the work complete when each has a clear scope and chosen approach.