ci: fix workflow stability by using standard actions

.gitea/workflows/deploy-claude-dev-dev.yml

@@ -20,9 +20,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        run: |
-          git clone --depth 1 --branch ${{ github.ref_name }} http://gitea:3000/jimmy/nas-tools.git .
-          git checkout ${{ github.sha }}
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.sha }}
 
       - name: Resolve image tags
         run: |

.gitea/workflows/deploy-dev.yml

@@ -15,9 +15,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        run: |
-          git clone --depth 1 --branch ${{ github.ref_name }} http://gitea:3000/jimmy/nas-tools.git .
-          git checkout ${{ github.sha }}
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.sha }}
       - name: Warm mirror cache for base images
         run: |
           set -u

.gitea/workflows/deploy.yml

@@ -18,13 +18,10 @@ jobs:
         - /var/packages/ContainerManager/target/usr/bin/docker:/usr/bin/docker
         - /volume1/docker/nas-dashboard:/nas-dashboard
     steps:
-      - name: Checkout exact commit
-        run: |
-          set -euo pipefail
-          git init .
-          git remote add origin http://gitea:3000/jimmy/nas-tools.git
-          git fetch --depth 1 origin "$GITHUB_SHA"
-          git checkout --detach FETCH_HEAD
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
       - name: Warm mirror cache for base images
         run: |
           set -u

.gitea/workflows/test.yml

@@ -15,9 +15,14 @@ jobs:
 
     steps:
       - name: Checkout repository
-        run: |
-          git clone http://gitea:3000/jimmy/nas-tools.git .
-          git checkout ${{ github.sha }}
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          cache: 'pip'
+          cache-dependency-path: 'dashboard/backend/requirements*.txt'
 
       - name: Install dependencies
         run: |
@@ -46,14 +51,14 @@ jobs:
 
     steps:
       - name: Checkout repository
-        run: |
-          git clone http://gitea:3000/jimmy/nas-tools.git .
-          git checkout ${{ github.sha }}
+        uses: actions/checkout@v4
 
-      - name: Install Node.js
-        run: |
-          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
-          apt-get install -y nodejs
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: 'dashboard/frontend/package-lock.json'
 
       - name: Install dependencies
         run: |