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

docs/topics/contributors/overview.md

@@ -0,0 +1,19 @@
+---
+title: Contributors (workflow)
+sidebar_label: Contributors (workflow)
+description: Monorepo layout, design system, Docusaurus workflow, plugin audits.
+---
+
+# Contributors (workflow)
+
+**Mitwirkende am Repository** — Framework, Website, CI, Plugins. Überblick über alle Rollen (inkl. Spieler, Moddevs, Sponsoren): [By audience](/wiki/topics/audiences/overview).
+
+Operational docs for people changing the framework, site, or release pipeline.
+
+- [Repository inventory](/wiki/contributors/repo-inventory) — current layout snapshot.
+- [Monorepo target layout](/wiki/contributors/monorepo-target-layout) — intended structure.
+- [Luminescent design system](/wiki/contributors/luminescent-design-system) — UI tokens for the site.
+- [Docusaurus workflow](/wiki/contributors/docusaurus-workflow) — edit/build the wiki site.
+- [Plugin submission audit](/wiki/contributors/plugin-submission-audit) — checklist for new plugins.
+
+Imported guides: [Contribution workflow](/wiki/wiki-import/Contributors/Guides/Contribution-Workflow).