docs: cover Docker + native install, not just Pelican/Wings
Installation page only documented Pelican Panel deployment, despite
GrumpyCore being a plain Node process runnable anywhere. Added
standalone Docker (with a DIY Dockerfile example, since none ships
in the repo) and native/bare-Node paths (systemd + pm2 examples),
plus a Resilience section explaining the new transient-gateway
self-recovery and why a supervisor still matters for real crashes.
Also fixed stale details: Node 20+ -> 22+ (matches package.json
engines), nodejs_20 -> nodejs_24 docker image, index.js -> build/index.js
startup path.
feat: complete English wiki — all pages bilingual (DE + EN)
New English pages (8):
Installation-EN, Configuration-EN, Permissions-EN, Workflow-EN,
Mod-Commands-EN, Ticket-Commands-EN, Voice-Commands-EN,
Preview-Commands-EN
_Sidebar.md updated — English section now links to all pages:
Setup: Installation-EN, Configuration-EN
Commands: Mod-Commands-EN, Ticket-Commands-EN,
Voice-Commands-EN, Preview-Commands-EN
Staff: Permissions-EN, Workflow-EN
Wiki now 100% bilingual: every German page has an English equivalent.
Total: 20 English module/setup pages + bilingual Home + Sidebar.
