chore: upgrade to Debian 13 (Trixie), Node.js 22 LTS, PostgreSQL 17

- LXC templates: debian-13-standard (default)
- Docker images: node:22-alpine, postgres:17-alpine
- TypeScript target: ES2022
- Updated template references (Ubuntu 24.04, Alpine 3.20)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/docker-build.md

@@ -10,14 +10,14 @@ Du bist ein Docker-Agent für React + Node.js Webprojekte.
 
 ### Backend (Node.js/Express)
 ```dockerfile
-FROM node:20-alpine AS builder
+FROM node:22-alpine AS builder
 WORKDIR /app
 COPY package*.json ./
 RUN npm ci --only=production
 COPY . .
 RUN npm run build
 
-FROM node:20-alpine
+FROM node:22-alpine
 WORKDIR /app
 RUN addgroup -g 1001 appgroup && adduser -u 1001 -G appgroup -s /bin/sh -D appuser
 COPY --from=builder /app/dist ./dist
@@ -31,7 +31,7 @@ CMD ["node", "dist/index.js"]
 
 ### Frontend (React)
 ```dockerfile
-FROM node:20-alpine AS builder
+FROM node:22-alpine AS builder
 WORKDIR /app
 COPY package*.json ./
 RUN npm ci
@@ -80,7 +80,7 @@ services:
       retries: 3
 
   db:
-    image: postgres:16-alpine
+    image: postgres:17-alpine
     volumes:
       - pgdata:/var/lib/postgresql/data
     environment:

.claude/skills/project-init.md

@@ -71,9 +71,9 @@ npx tsc --init
 ```json
 {
   "compilerOptions": {
-    "target": "ES2020",
+    "target": "ES2022",
     "module": "commonjs",
-    "lib": ["ES2020"],
+    "lib": ["ES2022"],
     "outDir": "./dist",
     "rootDir": "./src",
     "strict": true,

.claude/skills/proxmox-lxc.md

@@ -15,7 +15,7 @@ PVE_TOKEN_ID=$PVE_TOKEN_ID       # API Token ID
 PVE_TOKEN_SECRET=$PVE_TOKEN_SECRET # API Token Secret
 PVE_NODE=$PVE_NODE               # Node-Name (default: pve)
 PVE_STORAGE=$PVE_STORAGE         # Storage (default: local-lvm)
-LXC_TEMPLATE=$LXC_TEMPLATE       # Template (default: debian-12-standard)
+LXC_TEMPLATE=$LXC_TEMPLATE       # Template (default: debian-13-standard)
 ```
 
 ## LXC-CONTAINER ERSTELLEN
@@ -49,10 +49,10 @@ curl -sk -X POST "https://$PVE_HOST:$PVE_PORT/api2/json/nodes/$PVE_NODE/lxc" \
 ssh root@$PVE_HOST << 'EOF'
   # Template herunterladen falls nötig
   pveam update
-  pveam download local debian-12-standard_12.7-1_amd64.tar.zst
+  pveam download local debian-13-standard_12.7-1_amd64.tar.zst
 
   # Container erstellen
-  pct create $VMID local:vztmpl/debian-12-standard_12.7-1_amd64.tar.zst \
+  pct create $VMID local:vztmpl/debian-13-standard_12.7-1_amd64.tar.zst \
     --hostname app-staging \
     --storage local-lvm \
     --rootfs local-lvm:8 \
@@ -80,7 +80,7 @@ ssh root@$PVE_HOST "pct exec $VMID -- bash -c '
   apt install -y curl git sudo wget gnupg2 ca-certificates
 
   # Node.js 20 LTS
-  curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
+  curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
   apt install -y nodejs
 
   # Docker (in unprivileged LXC mit nesting)
@@ -229,6 +229,6 @@ Nutze `/ssh-deploy` mit der LXC-IP als SSH_HOST.
 ## TEMPLATES (häufig genutzt)
 | Template | Verwendung |
 |----------|-----------|
-| `debian-12-standard` | Standard für Webapps |
-| `ubuntu-22.04-standard` | Alternative mit Ubuntu |
-| `alpine-3.19-default` | Minimal, für einfache Services |
+| `debian-13-standard` | Standard für Webapps (Trixie) |
+| `ubuntu-24.04-standard` | Alternative mit Ubuntu |
+| `alpine-3.20-default` | Minimal, für einfache Services |

config/project.env.template

@@ -38,7 +38,7 @@ PVE_TOKEN_ID=
 PVE_TOKEN_SECRET=
 PVE_NODE=pve
 PVE_STORAGE=local-lvm
-LXC_TEMPLATE=debian-12-standard
+LXC_TEMPLATE=debian-13-standard
 # Token erstellen: Datacenter > Permissions > API Tokens
 
 # -------------------------------------------