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

Dockerfile

@@ -0,0 +1,10 @@
+# Build context: this repository root (gregWiki).
+# Runs the Docusaurus dev server with hot reload.
+FROM node:20-alpine
+WORKDIR /app
+ENV NODE_OPTIONS="--max-old-space-size=4096"
+COPY package.json package-lock.json ./
+RUN npm ci --ignore-scripts
+COPY . .
+EXPOSE 3000
+CMD ["npm", "run", "start", "--", "--host", "0.0.0.0", "--port", "3000"]