Merge Docusaurus site: all content under docs/, align with gregFramework split layout

- Move markdown and wiki-import tree into docs/; keep app shell at repo root
- Point docusaurus docs path to docs/; edit links to mleem97/gregWiki
- Sync and i18n scripts use gregWiki root and ../.wiki under gregFramework
- Sidebars: workspace layout from root docs ids; plugins under mods/extensions
- Fix redirects, module catalog URLs, release note paths, and wiki-import category keys
- Update repo inventory for split repos; Dockerfile for single-repo context

Made-with: Cursor

i18n/de/docusaurus-plugin-content-docs/current/wiki-import/EndUser/Reference/Disclaimer.md

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+# Disclaimer EN
+
+- FrikaMF is unofficial and community-driven.
+- Use at your own risk.
+- No compatibility guarantees after game updates.
+- No affiliation with WASEKU.
+
+## Policies
+
+- [AI Usage Policy (Wiki)](../../AI-USAGE)
+- [AI Usage Policy (Root)](/wiki/wiki-import/AI-USAGE)

i18n/de/docusaurus-plugin-content-docs/current/wiki-import/EndUser/Reference/Index.md

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+# Reference Index EN
+
+- [Disclaimer EN](Disclaimer)

i18n/de/docusaurus-plugin-content-docs/current/wiki-import/EndUser/Reference/_category_.json

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+{
+  "key": "wiki-import-enduser-reference"
+}