[jliermann]

This pull request restructures the documentation for the FAIR Data Principles by splitting a single long document into multiple focused files, each addressing a specific principle (Findable, Accessible, etc.). The content is reorganized for better clarity and navigation, and the main introduction is streamlined to improve readability.

[Copilot]

🟡 Changes recommended

The split breaks existing incoming links to section fragments on /docs/fair/ because the legacy anchors were removed without preserving navigation to the moved sections.

1 open issue

• Preserve legacy fragment links after documentation split · New

What changed in this PR

This PR reorganizes the knowledge base’s FAIR guidance into an introduction and four principle-specific pages, making the content easier to navigate.

Changes:

• Splits Findable, Accessible, Interoperable, and Reusable guidance into separate pages.
• Adds a FAIR sidebar category while retaining the /fair introduction URL.
• Updates cross-page links and publishing-standard references to the new locations.

File	Description
docs/​50_data_publication/​70_publishing_standards/​30_publishing_standards_infrastructure.mdx	Updates F2 and A2 links.
docs/​50_data_publication/​70_publishing_standards/​20_publishing_standards_publishers.mdx	Updates the A1 link.
docs/​00_intro/​10_fair/​50_reusable.mdx	Adds standalone Reusable guidance.
docs/​00_intro/​10_fair/​40_interoperable.mdx	Adds standalone Interoperable guidance.
docs/​00_intro/​10_fair/​30_accessible.mdx	Adds standalone Accessible guidance.
docs/​00_intro/​10_fair/​20_findable.mdx	Adds standalone Findable guidance.
docs/​00_intro/​10_fair/​10_fair.mdx	Retains the introduction and further resources.
docs/​00_intro/​10_fair/​_category_.json	Groups FAIR pages under a linked sidebar category.
docs/​00_intro/​10_fair.mdx	Removes the original combined document.

_{Review effort: Balanced}