Initial commit: Gitea Docker Setup für Proxmox

- Docker-Compose Konfiguration
- Setup-Script für LXC Container
- Backup-Script mit Rotation
- Installationsanleitung

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker/docker-compose.yml

@@ -0,0 +1,31 @@
+version: "3"
+
+services:
+  gitea:
+    image: gitea/gitea:latest
+    container_name: gitea
+    environment:
+      - USER_UID=1000
+      - USER_GID=1000
+      - GITEA__database__DB_TYPE=sqlite3
+      - GITEA__server__ROOT_URL=http://git.local:3000/
+      - GITEA__server__SSH_DOMAIN=git.local
+      - GITEA__server__SSH_PORT=2222
+    volumes:
+      - gitea-data:/data
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    ports:
+      - "3000:3000"   # Web UI
+      - "2222:22"     # Git SSH
+    restart: unless-stopped
+    networks:
+      - gitea-net
+
+networks:
+  gitea-net:
+    driver: bridge
+
+volumes:
+  gitea-data:
+    driver: local