chore: initialize gregWiki standalone repository

README.md

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+# Documentation layout (`docs/`)
+
+This folder is the **single source of truth** for the public Docusaurus site. The app lives in [`wiki/`](../wiki/); built pages are served under the **`/wiki`** base path.
+
+## How content is organized
+
+| Area | Path | Purpose |
+|------|------|--------|
+| **Landing** | [`intro.md`](./intro.md) | Site home (`/wiki/docs`). |
+| **Curated topics** | [`topics/`](./topics/) | Hubs: **Rollen** (Spieler, Moddevs, Contributor, Sponsoren → [`audiences/overview`](./topics/audiences/overview.md)), Roadmap, Security, Wiki-Import. |
+| **Mods & plugins** | [`mods/`](./mods/) | Framework, plugin wiki, mod wiki, standalone index. |
+| **Releases** | [`releases/`](./releases/) | Per-artifact release notes. |
+| **Reference** | [`reference/`](./reference/) | Hooks, naming, MCP, generated catalogs. |
+| **Contributors** | [`contributors/`](./contributors/) | Repo layout, Docusaurus workflow, design system. |
+| **Audiences** | [`audiences/`](./audiences/) | Newbies / intermediates / professionals. |
+| **Roadmap** | [`roadmap/`](./roadmap/) | Planning docs. |
+| **Meta** | [`meta/`](./meta/) | Workshop, devserver, backlog. |
+| **Monorepo wiki stubs** | [`wiki/`](./wiki/) | Short pages tied to the target repo layout (e.g. Hexmod). **Not** the GitHub Wiki import. |
+| **Legacy GitHub Wiki import** | [`wiki-import/`](./wiki-import/) | Bulk import from `.wiki/` (see below). |
+
+## Legacy GitHub Wiki (`docs/wiki-import/`)
+
+Long-form pages that originally lived in the **GitHub Wiki** are mirrored here so they are searchable and versioned with the repo.
+
+1. **Clone or update** the wiki working tree at the repo root as **`.wiki/`** (separate clone: `https://github.com/<org>/<repo>.wiki.git`).
+2. From **`wiki/`**, refresh the mirror and split locales:
+   - `npm run wiki:refresh`  
+   - Or stepwise: `npm run wiki:sync` → `npm run wiki:normalize-i18n` (optional `--dry-run` first).
+3. **German** translations for paired pages live under `wiki/i18n/de/docusaurus-plugin-content-docs/current/wiki-import/` after normalization.
+4. **New curated docs** should usually be added as normal Markdown under `docs/` (topics, reference, mods), not only under `wiki-import/`, so they stay easy to find. Use `wiki-import/` for bulk legacy material and incremental fixes; migrate important pages into `docs/topics/` or `docs/reference/` when you rewrite them.
+
+Details: [`topics/wiki-import/overview.md`](./topics/wiki-import/overview.md).
+
+## URLs
+
+- Doc id `intro` → `/wiki/docs` (see front matter).
+- Most docs → `/wiki/<doc-path>` (e.g. `mods/framework` → `/wiki/mods/framework`).
+- The monorepo stub folder uses ids like `wiki/mods/hexmod` → `/wiki/wiki/mods/hexmod` (double `wiki` in the path). Prefer linking by **doc id** or stable titles rather than hand-typing URLs.
+
+## Scripts (repo root / `wiki/`)
+
+| Script | Location | Role |
+|--------|------------|------|
+| Sync `.wiki` → `docs/wiki-import/` | `wiki/scripts/sync-wiki-to-docs.mjs` | Copies `*.md` from `.wiki/`. |
+| Split DE/EN pairs | `wiki/scripts/normalize-wiki-import-i18n.mjs` | EN default locale, DE under `wiki/i18n/de/...`. |
+| Sidebar category keys | `wiki/scripts/write-wiki-import-category-keys.mjs` | Regenerates `_category_.json` keys under Guides/Reference/Troubleshooting. |