chore: upgrade to Node 26 and node24 GitHub Actions

- Dockerfile: build stages on node:26-alpine3.24, runtime on
  nasdan/azure-pm2-nginx:nodejs-26-nginx-1.30
- npm ci --only=production -> --omit=dev (npm 11)
- CI: checkout@v7 and setup-node@v7 with Node 26.x
- CD: checkout@v7 and docker/login-action@v4

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: nasdan

.github/workflows/ci.yml

@@ -7,7 +7,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v7
+      - name: Setup Node.js
+        uses: actions/setup-node@v7
+        with:
+          node-version: 26.x
       - name: Install front
         run: |
           cd front

.github/workflows/dev-cd.yml

@@ -20,10 +20,10 @@ jobs:
       url: https://dev-codepaster.azurewebsites.net
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Log in to GitHub container registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}

.github/workflows/prod-cd.yml

@@ -16,10 +16,10 @@ jobs:
       url: https://codepaster.net/
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Log in to GitHub container registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20-alpine AS base
+FROM node:26-alpine3.24 AS base
 RUN mkdir -p /usr/app
 WORKDIR /usr/app
 
@@ -26,9 +26,9 @@ COPY --from=build-backend /usr/app/dist ./
 COPY --from=build-frontend /usr/app/dist $STATIC_FILES_PATH
 COPY ./back/package.json ./
 COPY ./back/package-lock.json ./
-RUN npm ci --only=production
+RUN npm ci --omit=dev
 
-FROM nasdan/azure-pm2-nginx:nodejs-20-nginx-1.24
+FROM nasdan/azure-pm2-nginx:nodejs-26-nginx-1.30
 ENV NODE_ENV=production
 ENV STATIC_FILES_PATH=./public
 ENV MOCK_REPOSITORY=false