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/TechnicalReference/Index.md

@@ -0,0 +1,11 @@
+# TechnicalReference Index EN
+
+Core technical reference for hooks, runtime bridges, and API contracts.
+
+## Contents
+
+- [Hooks](../HOOKS)
+- [Hook Naming Convention](../HOOK-NAMING-CONVENTION)
+- [FFI Bridge Reference](../FFI-Bridge-Reference)
+- [Framework Features & Use Cases EN](../Framework-Features-Use-Cases)
+- [Architecture](../Architecture)