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/Changelog-Versions.md

@@ -0,0 +1,45 @@
+---
+title: Changelog & Versions EN
+description: Release history and versioning reference for FrikaMF.
+sidebar_position: 180
+tags:
+  - audience:enduser
+  - audience:moddev
+  - audience:contributor
+  - audience:sponsor
+  - audience:gamedev
+---
+
+## Changelog & Versions
+
+Primary history:
+
+- [`CHANGELOG.md`](https://github.com/mleem97/gregFramework/blob/master/CHANGELOG.md)
+
+## Versioning
+
+- Framework format: `XX.XX.XXXX`
+- Source of truth: `FrikaMF/ReleaseVersion.cs`
+
+## Release metadata commands
+
+```powershell
+pwsh -ExecutionPolicy Bypass -File .\scripts\Update-ReleaseMetadata.ps1 -Bump major
+pwsh -ExecutionPolicy Bypass -File .\scripts\Update-ReleaseMetadata.ps1 -Bump medium
+pwsh -ExecutionPolicy Bypass -File .\scripts\Update-ReleaseMetadata.ps1 -Bump minor
+```
+
+## Example constants
+
+### 🦀 Rust
+
+```rust
+pub const ABI_VERSION: u32 = 5;
+```
+
+### 🔷 C\#
+
+```csharp
+public const uint API_VERSION = 5;
+```
+